Responses to Brain Fog and Marijuana Withdrawal Questionnaire

After you quit weed, or perhaps while you’re still using, you may experience a lack of focus and mental clarity commonly referred to as brain fog. You may have difficulty concentrating or you may notice a worrying drop in productivity.

As with other withdrawal symptoms, the cognitive difficulties you encounter will be unique to you, and represent your brain recalibrating after an extended period marijuana use. Take comfort in knowing that you are not alone. Today, we’re bringing you accounts of 270 people who have recently quit using marijuana. Responses were gathered from an anonymous brain fog questionnaire posted on Weedless.org.

How much of your day is impacted by brain fog?

Are any daily activities disrupted by your brain fog?

When is your brain fog most severe?

Have you experienced any difficulty falling or staying asleep?

Sweden | 25 to 34 Year Old Male (Using for 6-10 years)

Brain fog, memory and concentration problems, digestive issues, light sensitivity and headaches, mood swings..

Habit: 1/2 g a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: Between 24-28h after cessation
Purpose: Recreational purposes only
Date Submitted: October 7, 2021

India | 25 to 34 Year Old Male (Using for 3-5 years)

Brain fog, anxiety panic attacks

Habit: 5-6 bongs a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Social activities
Timing of Symptoms: After quiting marijauna
Purpose: Recreational purposes only
Date Submitted: October 6, 2021

United States of America | 35 to 44 Year Old Male (Using for 3-5 years)

brain fog, bad mood, anxiety, loss of appetite, sleepy, laziness

Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: a day after quitting
Purpose: Recreational purposes only
Date Submitted: October 5, 2021

South Africa | 25 to 34 Year Old Male (Using for 6-10 years)

Sleeplessness, irritation, brain fog

Brain Fog Experienced: A few hours each day
Activities Disrupted: Work motivation
Timing of Symptoms: 1 day after use
Purpose: Recreational purposes only
Date Submitted: October 5, 2021

Canada | 25 to 34 Year Old Male (Using for 6-10 years)

Having a hard time staying focused, periods of lethargy, difficulty thinking

Habit: Did use approx. 2-3 grams
Brain Fog Experienced: Most of the day
Activities Disrupted: Social activities
Timing of Symptoms: Experienced symptoms as a chronic smoker and symptoms seemed to increase, especially lethargy, after 1 day of quitting
Purpose: Both recreational and medicinal purposes
Date Submitted: October 4, 2021

United States of America | 25 to 34 Year Old Male (Using for 1-2 years)

Fatigue and brain fog and some dizziness. Mainly on the mornings

Habit: 1-3 pipe hits a day. And 1-2 10mg edibles a week
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work motivation
Timing of Symptoms: I
Purpose: Recreational purposes only
Date Submitted: October 4, 2021

United States of America | 18 to 24 Year Old Male (Using for 1-2 years)

Headaches, hot flashes, goosebumps, nausea, stomach cramps, anxiety, brain fog, restlessness, depression

Habit: 1 to 2 grams a day
Brain Fog Experienced: All day
Activities Disrupted: Schoolwork
Timing of Symptoms: After I started smoking every day
Purpose: Recreational purposes only
Date Submitted: October 4, 2021

Canada | 25 to 34 Year Old Male (Using for 3-5 years)

Heavy sweating from armpits and palms of hands, mental delays worse than I felt while actively smoking cannabis, sleep impairment, lack of diet, irritability.

Habit: 5-1.0g a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work productivity
Timing of Symptoms: 3 days post-cessation
Purpose: Both recreational and medicinal purposes
Date Submitted: October 4, 2021

Egypt | 18 to 24 Year Old Male (Using for 3-5 years)

Cant concentrate or think properly like i used to and memory is also highly affected and im feeling down most of the time even though i exercise daily and am in great shape and im constently feeling drained of energy

Habit: 2 to 5 joints a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Schoolwork
Timing of Symptoms: 1 day after i stopped smoking
Purpose: Recreational purposes only
Date Submitted: October 4, 2021

United Kingdom of Great Britain and Northern Ireland | 25 to 34 Year Old Female (Using for 1-2 years)

Stomach pain Lack of appetite Vivid dreaming Brain fog Inability to concentrate Nausea Anxiety

Habit: 2/3 quite strong joints a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: Day 2
Purpose: Recreational purposes only
Date Submitted: October 3, 2021

Germany | 25 to 34 Year Old Male (Using for 3-5 years)

Procrastination

Habit: 5 gm
Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: Since starting weed and having nothing to do at the same time
Purpose: Recreational purposes only
Date Submitted: October 3, 2021

United States of America | 35 to 44 Year Old Male (Using for 6-10 years)

Unbalanced, foggy, thought constipation. This isn’t all the time, but I do have moments where I feel like I smoked the night before, but I haven’tsmoked in weeks. To elaborate, it feel like im still a little high, stupid and uncoordinated.

Habit: Gram or less. Only a couple bong rips
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work productivity
Timing of Symptoms: I noticed maybe a week or 2 after quitting, after the initial non-high high wore off.
Purpose: Both recreational and medicinal purposes
Date Submitted: October 3, 2021

Canada | 18 to 24 Year Old Male (Using for 1-2 years)

Severe brain fog, not able to focus, forgetting what someone asked me.

Habit: A lot.
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: About 5 days after stopping
Purpose: Recreational purposes only
Date Submitted: October 1, 2021

India | 18 to 24 Year Old Male (Using for 1-2 years)

Brain fog. Paranoia

Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: After 2 years of regular marijuana use
Purpose: Recreational purposes only
Date Submitted: October 1, 2021

United States of America | 18 to 24 Year Old Male (Using for 3-5 years)

Waves of intense brain fog. It feels as if there is pressure in my head and thought processes become hazy. It actually feels my memory has gotten worse compared to before I quit smoking.

Habit: I don’t count but enough to stay high all day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Schoolwork
Timing of Symptoms: 3-5 days after quitting (currently at 7 days)
Purpose: Recreational purposes only
Date Submitted: October 1, 2021

United States of America | 25 to 34 Year Old Female (Using for 3-5 years)

Dull headache

Habit: Smoke two hits a day of a small pipe, so around 0.1 grams a day
Brain Fog Experienced: Less than an hour a day
Activities Disrupted: None of the above
Timing of Symptoms: Day after starting my tolerance break
Purpose: Both recreational and medicinal purposes
Date Submitted: October 1, 2021

United States of America | 35 to 44 Year Old Male (Using for 1-2 years)

Short term memory is actually worse after stopping (6 days in). Things that used to make me sad now make me very angry. Empathy is much more difficult. A near constant level of fear/stress sits in the back of my mind and tints everything (Important note: This latter one was my general mental state before I started taking cannabis. And half of the reason for doing so on a daily basis.)

Habit: Start of the pandemic: .25-.5 grams per day avg. 2 years into pandemic: 1-1.5 grams per day. THC content: 20-27%.
Brain Fog Experienced: Most of the day
Activities Disrupted: Social activities
Timing of Symptoms: 2 days after discontinuing use. Night sweats and teeth clenching started the night/morning after (living environment is high stress, as is working environment).
Purpose: Both recreational and medicinal purposes
Date Submitted: September 30, 2021

United States of America | 55 to 64 Year Old Male (Using for 11+ years)

Irritability, gastric upset, headaches, insomnia

Habit: 1-1/2 to 2 grams
Brain Fog Experienced: All day
Activities Disrupted: Work motivation
Timing of Symptoms: Within 24 hours after quitting
Purpose: Both recreational and medicinal purposes
Date Submitted: September 30, 2021

United States of America | 18 to 24 Year Old Male (Using for 7-12 months)

Lack of focus. Slow eyes. Brain lag. Emotional. Frustrated.

Brain Fog Experienced: A few hours each day
Activities Disrupted: Schoolwork
Timing of Symptoms: Within 2-3 days of complete stop
Purpose: Both recreational and medicinal purposes
Date Submitted: September 29, 2021

Canada | 18 to 24 Year Old Male (Using for 11+ years)

Difficulty concentrating difficulty formulating sentances. Severe stress and anxiety. Intermittent heart pain.

Habit: 4 grams
Brain Fog Experienced: All day
Activities Disrupted: Work motivation
Timing of Symptoms: Today
Purpose: Both recreational and medicinal purposes
Date Submitted: September 29, 2021

United Kingdom of Great Britain and Northern Ireland | 25 to 34 Year Old Female (Using for 6-10 years)

Vivid dreams brain fog memory loss

Habit: None now but before I was having around 10s a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Social activities
Timing of Symptoms: Straight away like within the first week
Purpose: Both recreational and medicinal purposes
Date Submitted: September 29, 2021

United States of America | 18 to 24 Year Old Male (Using for 6-10 years)

Groggy sleepy sad hopelss

Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: 2 days in
Purpose: Recreational purposes only
Date Submitted: September 29, 2021

| 18 to 24 Year Old Female (Using for 1-2 years)

mental fog, mood swings, sensory confusion, forgettfulness

Brain Fog Experienced: A few hours each day
Activities Disrupted: Work productivity
Timing of Symptoms: when I stopped using
Purpose: Recreational purposes only
Date Submitted: September 29, 2021

United Kingdom of Great Britain and Northern Ireland | 18 to 24 Year Old Female (Using for 6-10 years)

Abit of brain fog so far. I would normally have a spliff now and collect my thought together… but not today, I’m quitting. & getting my thoughts together the natural way instead if depending on something

Habit: 4grams
Brain Fog Experienced: A few hours each day
Activities Disrupted: Social activities
Timing of Symptoms: Been about 17hours
Purpose: Both recreational and medicinal purposes
Date Submitted: September 29, 2021

New Zealand | 45 to 54 Year Old Female (Using for 11+ years)

concentration issues, tired, feeling like I can not remember things STM and LTM affected

Brain Fog Experienced: All day
Activities Disrupted: Schoolwork
Timing of Symptoms: 1 week after
Purpose: Both recreational and medicinal purposes
Date Submitted: September 29, 2021

United States of America | 65 to 74 Year Old Female (Using for 11+ years)

Poor memory and concentration, panic, anxiety, lack of interest and joy, obsessive thoughts, guilt and worry, forgetful, fearful

Habit: All day smoking until bedtime
Brain Fog Experienced: A few hours each day
Activities Disrupted: Social activities
Timing of Symptoms: gradually over the last 3-4 weeks
Purpose: Both recreational and medicinal purposes
Date Submitted: September 28, 2021

United States of America | 35 to 44 Year Old Female (Using for 11+ years)

Incredibly vivid bad dreams, general brain fog, phantom highs

Habit: It was about a gram a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work motivation
Timing of Symptoms: About a week after quitting- once insomnia and lack of appetite dissipated
Purpose: Both recreational and medicinal purposes
Date Submitted: September 28, 2021

Canada | 18 to 24 Year Old Male (Using for 1-2 years)

Decreased attention span. brain feels spacey, particularly at my job

Habit: 0.5g joint each evening. Additional 10-20mg of edibles on weekends
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: 2 days after ceasing use
Purpose: Recreational purposes only
Date Submitted: September 28, 2021

Canada | 55 to 64 Year Old Female (Using for 1-2 years)

Frontal Headache, brain fog, fatigue, anxiety

Habit: 1 joint/24h
Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: Within 24 hours
Purpose: Both recreational and medicinal purposes
Date Submitted: September 28, 2021

South Africa | 18 to 24 Year Old Male (Using for 3-5 years)

Brain fog, boredom, restlessness

Brain Fog Experienced: Most of the day
Activities Disrupted: Schoolwork
Timing of Symptoms: 24 hours. Although brain fog is an effect of the drug as well. So it doesn’t feel like a withdrawl effect
Purpose: Recreational purposes only
Date Submitted: September 28, 2021

Angola | 18 to 24 Year Old Male (Using for 0-6 months)

Brain fog, anxiety

Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: Few days after the use
Purpose: Both recreational and medicinal purposes
Date Submitted: September 28, 2021

Austria | 18 to 24 Year Old Male (Using for 6-10 years)

a bit of depression, a lil brain fog and the want to get high again and enjoy life. Everything i do is less fun, but thats a halfway illusion cause when i smoke all day i am depressed after my second meal. If i only smoke in the evening its amazing.

Habit: 2-3gs a day, fyi i quit 2 weeks ago symptoms of brain fog decrease a little in such a small amount that u will hardly notice
Brain Fog Experienced: Less than an hour a day
Activities Disrupted: Schoolwork
Timing of Symptoms: THE MOMENT I STOPPED SMOKING
Purpose: Both recreational and medicinal purposes
Date Submitted: September 26, 2021

United States of America | 18 to 24 Year Old Male (Using for 0-6 months)

spacey-ness, difficulty concentrating, OBE

Habit: Once a day
Brain Fog Experienced: All day
Activities Disrupted: Work productivity
Timing of Symptoms: 1 week prior
Purpose: Recreational purposes only
Date Submitted: September 26, 2021

Canada | 18 to 24 Year Old Female (Using for 0-6 months)

Anxiety Brain fog Shortness of breath Loss of appetite Fatigue

Habit: 2 joints a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: After 2-3 days
Purpose: Both recreational and medicinal purposes
Date Submitted: September 26, 2021

United States of America | 18 to 24 Year Old Male (Using for 1-2 years)

Brain fog. Memory fog. Sleeplessness. Irritability. Severe chills and sweats.

Habit: Half a gram a day.
Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: About 4 hours after abstinence begun.
Purpose: Both recreational and medicinal purposes
Date Submitted: September 25, 2021

United States of America | 18 to 24 Year Old Female (Using for 0-6 months)

Feeling out of it, forgetting tasks I set minutes before, difficulty focusing, slower reflexes, and takes longer to solve problems

Habit: Half a gram a day
Brain Fog Experienced: All day
Activities Disrupted: Social activities
Timing of Symptoms: About a year ago
Purpose: Both recreational and medicinal purposes
Date Submitted: September 25, 2021

Canada | 35 to 44 Year Old Male (Using for 11+ years)

Extreeme fatigue, disconnected mind from body, insomnia.

Habit: 20 mg edible a day
Brain Fog Experienced: All day
Activities Disrupted: Work motivation
Timing of Symptoms: 3 days after quitting
Purpose: Recreational purposes only
Date Submitted: September 25, 2021

Australia | 25 to 34 Year Old Male (Using for 1-2 years)

Sweating, poor balance, anxiety, intense feelings of emotion, lack of appetite.

Habit: No idea, its a lot though
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work motivation
Timing of Symptoms: 16 or so hours after using.
Purpose: Both recreational and medicinal purposes
Date Submitted: September 25, 2021

United Kingdom of Great Britain and Northern Ireland | 18 to 24 Year Old Male (Using for 0-6 months)

Brain fog

Habit: 5g a day
Brain Fog Experienced: All day
Activities Disrupted: Work productivity
Timing of Symptoms: The day after a very strong smoke sesh
Purpose: Both recreational and medicinal purposes
Date Submitted: September 24, 2021

United States of America | 25 to 34 Year Old Male (Using for 11+ years)

Brain fog e.g. not feeling completely ‘awake’ or alert all day. Tiredness. Unmotivated to start tasks or engage in enjoyable activities.

Habit: Concentrates
Brain Fog Experienced: All day
Activities Disrupted: Work motivation
Timing of Symptoms: The day after marijuana cessation
Purpose: Both recreational and medicinal purposes
Date Submitted: September 24, 2021

Canada | 55 to 64 Year Old Female (Using for 11+ years)

Depression, brain fog, sleepiness, loose stool, heart palpitations, draggy.

Habit: One to two grams a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: Day two
Purpose: Both recreational and medicinal purposes
Date Submitted: September 24, 2021

United States of America | 18 to 24 Year Old Female (Using for 3-5 years)

Thoughts jumbled, racing thoughts, panic attacks,

Habit: 2 grams of concentrates a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Social activities
Timing of Symptoms: Two days after cessation of marijuana use, but there were other factors in play
Purpose: Both recreational and medicinal purposes
Date Submitted: September 24, 2021

United Kingdom of Great Britain and Northern Ireland | 35 to 44 Year Old Male (Using for 3-5 years)

Insomnia, dreams, sleep talking, poor motor skills- brain and body not in sync

Habit: Gram a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work motivation
Timing of Symptoms: 3 days post last smoke
Purpose: Both recreational and medicinal purposes
Date Submitted: September 23, 2021

United States of America | 25 to 34 Year Old Female (Using for 11+ years)

Flu like. It’s been 6 days and I can’t concentrate. I can’t think about what I need to do at the grocery store. My stomach can’t handle much food. I feel like a useless funless tool that’s only alive to make a damn paycheck and it’s hard to just step back and enjoy that i’m alive and well. I’m quick to just hate everything. I’m quicker to say mean things, without thinking about what i’m saying/doing.

Habit: at least a gram or 2 a day? i go through an eight of flower and a half gram of concentrate a week
Brain Fog Experienced: All day
Activities Disrupted: Social activities
Timing of Symptoms: Day one, progressing every day.
Purpose: Both recreational and medicinal purposes
Date Submitted: September 23, 2021

United States of America | 25 to 34 Year Old Male (Using for 11+ years)

Irritability, problems recalling example events, and problems thinking of the word I’m looking for.

Habit: Around 1 gram a day
Brain Fog Experienced: Less than an hour a day
Activities Disrupted: Work motivation
Timing of Symptoms: Around 5 days after cessation.
Purpose: Both recreational and medicinal purposes
Date Submitted: September 22, 2021

United Kingdom of Great Britain and Northern Ireland | 18 to 24 Year Old Male (Using for 6-10 years)

A really scattered and frantic way of thinking

Habit: 5-1gram a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: Today
Purpose: Recreational purposes only
Date Submitted: September 20, 2021

United States of America | 25 to 34 Year Old Female (Using for 3-5 years)

Hazy/dreamlike feeling. Muscle weakness/slow. Zone out more frequently. Irritable with small stressors.

Habit: 2g a day
Brain Fog Experienced: All day
Activities Disrupted: Social activities
Timing of Symptoms: Same day quitting
Purpose: Medicinal purposes only
Date Submitted: September 20, 2021

United States of America | 18 to 24 Year Old Male (Using for 1-2 years)

Anxiety, depression, memory issues, insomnia, headaches

Habit: Not entirely sure, depends on day
Brain Fog Experienced: All day
Activities Disrupted: Social activities
Timing of Symptoms: August, 2020
Purpose: Recreational purposes only
Date Submitted: September 20, 2021

United States of America | 25 to 34 Year Old Male (Using for 11+ years)

Depression, brain fog-a tingling in the right side near my temple

Habit: Smoking 2grams a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work motivation
Timing of Symptoms: When I quit smoking weed
Purpose: Medicinal purposes only
Date Submitted: September 19, 2021

Canada | 35 to 44 Year Old Male (Using for 7-12 months)

Muddy brain

Habit: 5-10mg edible a day
Brain Fog Experienced: All day
Activities Disrupted: None of the above
Timing of Symptoms: Days 1-3 without so far
Purpose: Both recreational and medicinal purposes
Date Submitted: September 19, 2021

Canada | 25 to 34 Year Old Female (Using for 1-2 years)

Having hard time to sleep, having trouble to eat, and constantly feeling foggy in my head.

Habit: A LOT. As Snoop dog once said: I smoke till I sleep.
Brain Fog Experienced: Most of the day
Activities Disrupted: Schoolwork
Timing of Symptoms: The first day I stared quitting.
Purpose: Recreational purposes only
Date Submitted: September 18, 2021

Vietnam | 18 to 24 Year Old Male (Using for 1-2 years)

Currently is about 1 month and 3 weeks after my weed usage cessation and I still having memory deficiency, can’t recollect information, knowledge that I was capable to just speak out instantly, since uni semester started 3 weeks earlier, I notice that I have slower processing speed, cant read as fast and have to retrace, reread the whole sentences several times just to comprehend or make out the crucial ideas behind it’s meaning. My speech also becomes kinda slurred, verbal memory is terrible, cant structure the whole speaking pattern and using the correct norms, words even terminologies that are part of my profession. Hearing lectures is just like racing against comprehension and catching up with what I was hearing. Toppled all of this with a more severe case of anxiety and depressive tendency. I cant do thing as fast as when I was using weed, English is my second language, I used to be able to make out every vocabularies of any degrees and wield it without a sweat, now I’m having difficulty in phrasing, writing, speaking, words just disappear.

Habit: 5g for two weeks and smoked with a pipe about 3 to 5 times a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: After 2 or 3 days after my sudden cessation, I became uncontrollably irritated, discontented with everything, feeling, and spiked with anxiety and restlessness for a month. However in that month I was on a break from works, school since I think I should assist my withdrawal with relaxation and mindfulness, nevertheless I packed the whole month with anxiety, irritability, depression, restlessness and sleep efficacy just plummeted, I cant seem to concentrate doing things I intended to, and always had a dreadful felling of wasting time, negative self-jugdement frequently. After a month it was the start of semester that I noticed a significant deficiency in my both my mental capacity and cognitive abilities, right now I still having insomnia and anxiety disorder
Purpose: Both recreational and medicinal purposes
Date Submitted: September 18, 2021

Australia | 25 to 34 Year Old Male (Using for 6-10 years)

Not thinking clearly, aggressive thoughts & struggling to keep my mind focussed on anything else besides cravings. Nightmares (mild)

Habit: 4 or 5 hits a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Social activities
Timing of Symptoms: Day 1
Purpose: Recreational purposes only
Date Submitted: September 18, 2021

United States of America | 35 to 44 Year Old Male (Using for 11+ years)

Brain fog. Lower attention span, difficulty staying focused, very forgetful, a feeling of incompetence, less confident in my cognitive abilities, insecurities. I feel as if I am high on something, or like the feeling when I need water or some sort of mineral missing in my diet. Ive taken college math courses as high as calculus 2 during regular use and was great at math, while quiting smokin weed my basic math skills are overwhelming for me and numbers are hard for my mind to organize.

Habit: 2-3.5 grams of marijuana with 28-33 % thc content a day
Brain Fog Experienced: All day
Activities Disrupted: Work productivity
Timing of Symptoms: Symptoms first appeared within the first week, and have worsened each week after. Currently have quit for 3 weeks so far and symptoms are at their worst.
Purpose: Both recreational and medicinal purposes
Date Submitted: September 18, 2021

United States of America | 18 to 24 Year Old Male (Using for 3-5 years)

Brain fog

Habit: 2 grams a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Social activities
Timing of Symptoms: Hours after not smoking weed
Purpose: Both recreational and medicinal purposes
Date Submitted: September 18, 2021

United Kingdom of Great Britain and Northern Ireland | 18 to 24 Year Old Male (Using for 3-5 years)

Anxiety, depression and mind fog exactly as stated in this article

Habit: I’d would estimate that I used about one quarter of a gram per day
Brain Fog Experienced: Most of the day
Activities Disrupted: Social activities
Timing of Symptoms: Roughly just under a week after I stopped smoking
Purpose: Recreational purposes only
Date Submitted: September 17, 2021

Portugal | 35 to 44 Year Old Male (Using for 3-5 years)

Insomnia, emotional outbursts,

Brain Fog Experienced: A few hours each day
Activities Disrupted: Work motivation
Timing of Symptoms: First night
Purpose: Recreational purposes only
Date Submitted: September 17, 2021

United States of America | 18 to 24 Year Old Male (Using for 7-12 months)

Everyone tells me I look dumb or retarted

Habit: I would smoke alot
Brain Fog Experienced: Most of the day
Activities Disrupted: Social activities
Timing of Symptoms: 3 to 4 weeks ago
Purpose: Recreational purposes only
Date Submitted: September 17, 2021

United States of America | 25 to 34 Year Old Male (Using for 3-5 years)

Brain fog, poor temperature regulation, body ache

Habit: 10mg to 20mg THC ingested orally
Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: 48 hours after stopping
Purpose: Recreational purposes only
Date Submitted: September 16, 2021

Ghana | 25 to 34 Year Old Male (Using for 11+ years)

Brain fog, memory loss, difficulty concentrating, difficulty making decisions, difficulty holding a conversation, severe fatigue, and insomnia.

Habit: More than a 0.5 gram a day
Brain Fog Experienced: All day
Activities Disrupted: Social activities
Timing of Symptoms: After quitting smoking recently.
Purpose: Both recreational and medicinal purposes
Date Submitted: September 16, 2021

United States of America | 35 to 44 Year Old Female (Using for 11+ years)

brain fog, gastrointestinal issues

Habit: a lot
Brain Fog Experienced: Most of the day
Activities Disrupted: Schoolwork
Timing of Symptoms: a few days after stopping
Purpose: Both recreational and medicinal purposes
Date Submitted: September 16, 2021

United States of America | 18 to 24 Year Old Male (Using for 1-2 years)

Feel like I don’t exist

Brain Fog Experienced: All day
Activities Disrupted: Work productivity
Timing of Symptoms: After an anxiety attack
Purpose: Recreational purposes only
Date Submitted: September 15, 2021

United States of America | 18 to 24 Year Old Female (Using for 0-6 months)

Loss of memory, sometimes I feel not in touch with self, extreme anxiety attacks, unable to sleep, or eat

Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: Nighttime
Purpose: Recreational purposes only
Date Submitted: September 15, 2021

United States of America | 25 to 34 Year Old Male (Using for 3-5 years)

Mood swings, loss of appetite, difficulty remembering recent events

Habit: 1 joint a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work productivity
Timing of Symptoms: After 2 days of quitting.
Purpose: Recreational purposes only
Date Submitted: September 15, 2021

Canada | 18 to 24 Year Old Male (Using for 1-2 years)

Brain feels wierd, vision feels blurry

Habit: Half a gram a day
Brain Fog Experienced: All day
Activities Disrupted: None of the above
Timing of Symptoms: A year ago
Purpose: Recreational purposes only
Date Submitted: September 15, 2021

United States of America | 18 to 24 Year Old Female (Using for 1-2 years)

difficulty getting vision to focus, general sense of unreality & dreaming when awake, brain fogginess

Habit: Hitting a pen throughout the day and/or a bowl a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work productivity
Timing of Symptoms: after two years of frequent marijuana use
Purpose: Both recreational and medicinal purposes
Date Submitted: September 14, 2021

United States of America | 45 to 54 Year Old Female (Using for 11+ years)

Light headedness, dizziness, brain fog, nausea, and rushes of adrenaline

Brain Fog Experienced: A few hours each day
Activities Disrupted: Social activities
Timing of Symptoms: About 2 days after stopping completely
Purpose: Recreational purposes only
Date Submitted: September 14, 2021

United Kingdom of Great Britain and Northern Ireland | 25 to 34 Year Old Male (Using for 11+ years)

Terrible short term – long term memory plus some completely forgotten memories. Problems communicating with others ( not being able to think of a word I want to use in a conversation Unable to proccess emotions / find it very hard to feel emotions

Habit: Smoke 14g a week. So 2g a day roughly
Brain Fog Experienced: All day
Activities Disrupted: Schoolwork
Timing of Symptoms: Slowly past few years gotten worse and worse.
Purpose: Both recreational and medicinal purposes
Date Submitted: September 14, 2021

United States of America | 35 to 44 Year Old Female (Using for 11+ years)

Overall I feel good. I am 8 days out. My mind is quicker. Experiencing a bit more grogginess than normal throughout day.

Brain Fog Experienced: Less than an hour a day
Activities Disrupted: None of the above
Timing of Symptoms: Day 4
Purpose: Both recreational and medicinal purposes
Date Submitted: September 14, 2021

United States of America | 18 to 24 Year Old Male (Using for 3-5 years)

Irritability, Brain Fog, Loss of Concentration

Habit: .25 Grams a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: 1 day ago
Purpose: Both recreational and medicinal purposes
Date Submitted: September 14, 2021

South Africa | 25 to 34 Year Old Male (Using for 6-10 years)

Brain fog, excessive energy, eye sight delusions

Habit: In the evenings, 1-3 joints
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: Day 3 after stopping. Smoking for 5 years every day.
Purpose: Both recreational and medicinal purposes
Date Submitted: September 14, 2021

| 18 to 24 Year Old Male (Using for 1-2 years)

Brain fog Nerves at back of the head

Habit: 1 gram a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: After smoking
Purpose: Recreational purposes only
Date Submitted: September 13, 2021

United States of America | 18 to 24 Year Old Male (Using for 0-6 months)

Definitely my mind and body being out of sync, a feeling similar to coming down off of an lsd high. Trouble falling asleep, trouble focusing and lots of anxiety. Also tenseness in my back and neck muscles but that maybe unrelated

Habit: About 1 gram a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work productivity
Timing of Symptoms: 3 days after stopped smoking
Purpose: Recreational purposes only
Date Submitted: September 13, 2021

United States of America | 18 to 24 Year Old Male (Using for 0-6 months)

Feels like I’m wearing a hat too tight, I feel as though I’m kind of stoned all the time, minus all the good parts.

Habit: About half a gram a day
Brain Fog Experienced: All day
Activities Disrupted: Social activities
Timing of Symptoms: 1 week ago
Purpose: Both recreational and medicinal purposes
Date Submitted: September 13, 2021

Denmark | 25 to 34 Year Old Male (Using for 1-2 years)

Irritability, tiredness, brain-fog, cravings, depression, sweating, shakes

Habit: 5grams a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Schoolwork
Timing of Symptoms: Day 1 with with a peak at day 3 and day 7 a slow improvement with random smaller peaks
Purpose: Recreational purposes only
Date Submitted: September 13, 2021

India | 25 to 34 Year Old Male (Using for 3-5 years)

I have decreased my use of cannabis, Now I smoke cannabis 1 or 2 time a month. After smoking I loose control and feel very lazy. Even on the next day of smoking I feel lazy and brain fog

Habit: 3 grams a day
Brain Fog Experienced: All day
Activities Disrupted: Work motivation
Timing of Symptoms: After smoking and continue till next day
Purpose: Recreational purposes only
Date Submitted: September 13, 2021

United States of America | 25 to 34 Year Old Male (Using for 3-5 years)

First I felt sick and very anxious all the time I was getting the sweats and my stomach did not feel good and now I’m getting a brain fog and general fatigue throughout the day as well as just feeling under the weather

Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: The sickness came the very first day I stopped using and the brain fog took about 2 weeks to manifest
Purpose: Both recreational and medicinal purposes
Date Submitted: September 12, 2021

India | 18 to 24 Year Old Male (Using for 3-5 years)

Mind and body out of sync.

Habit: A single joint a day
Brain Fog Experienced: All day
Activities Disrupted: Work productivity
Timing of Symptoms: Next day after smoking
Purpose: Recreational purposes only
Date Submitted: September 11, 2021

United States of America | 55 to 64 Year Old Female (Using for 11+ years)

First of all, I’m a very light smoker. One to two hit a day at most. Note regularly three to four hits a week. Either of those scenarios will put me in a fog by the third day which will cause me to stop. First symptom is congestion. I think maybe some is trapped in my nasal passage. Then comes the fog, can’t remember words, poor concentration, comprehension. When reading my Renton is terrible. Can’t do anything mentally challenging. My vocabulary goes from college level to third grade with a lot of mum’s and “What’s the word I’m looking for.”

Habit: One to two hits from a joint, pipe or bong each day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: Really when I was younger and smoked none of this happened. But after I began to be exposed to Chlorpyrifos (an organophosphate pesticide) overspray. So that all started in about 2000 when a whole bunch of other allergy symptoms hit and other health effects from the exposures. My tolerance for a lot of things went down and I became sensitive. Couldn’t wrap my head around any of what was happening at the time.
Purpose: Medicinal purposes only
Date Submitted: September 11, 2021

United States of America | 18 to 24 Year Old Male (Using for 7-12 months)

My memories feel like dreams, it’s very hard to relive certain memories although I still recall them. I feel like I’m very focused on what is going on in my head but not what’s going on around me.

Habit: Less than a gram a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Social activities
Timing of Symptoms: A day after stopping
Purpose: Recreational purposes only
Date Submitted: September 10, 2021

United States of America | 18 to 24 Year Old Female (Using for 0-6 months)

Heavy Brain fog, depression

Habit: Half a joint a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Social activities
Timing of Symptoms: Day 3 after stopping
Purpose: Recreational purposes only
Date Submitted: September 10, 2021

Singapore | 25 to 34 Year Old Male (Using for 6-10 years)

Difficulty falling asleep at night (struggling with this the most) , occasional brain fog, body feel out of sync

Habit: 2 grams a day
Brain Fog Experienced: Less than an hour a day
Activities Disrupted: Work motivation
Timing of Symptoms: After stopping weed intake
Purpose: Both recreational and medicinal purposes
Date Submitted: September 10, 2021

Australia | 25 to 34 Year Old Male (Using for 11+ years)

Waves of head tension type headaches and sensation of feeling hot or having a temperature.

Habit: 5grams a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: 2 days after quitting on day 5 now
Purpose: Recreational purposes only
Date Submitted: September 10, 2021

Germany | 25 to 34 Year Old Male (Using for 11+ years)

emptyness inside, better memory, sleeplessness, brain fog, concentration problems, emotional

Habit: 0,3 gram a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work productivity
Timing of Symptoms: 4 days to 1 week after quitting
Purpose: Recreational purposes only
Date Submitted: September 10, 2021

United States of America | 18 to 24 Year Old Male (Using for 11+ years)

Brain fog, lack of attention span, depression and hard to remember things

Habit: 1 g a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Schoolwork
Timing of Symptoms: Since I stopped
Purpose: Both recreational and medicinal purposes
Date Submitted: September 9, 2021

United States of America | 18 to 24 Year Old Female (Using for 6-10 years)

Memory issues, low motivation, low concentration.

Brain Fog Experienced: A few hours each day
Activities Disrupted: Work productivity
Timing of Symptoms: 1 month after cessation
Purpose: Recreational purposes only
Date Submitted: September 9, 2021

India | 18 to 24 Year Old Male (Using for 1-2 years)

My brain not working as much as active when I smoke weed , when I smoke weed I get soo much energy and I can do things very easily but when I don’t smoke it I feel like my brain is not working and not able concentrate

Habit: 5 joints a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work productivity
Timing of Symptoms:
Purpose: Both recreational and medicinal purposes
Date Submitted: September 9, 2021

United States of America | 18 to 24 Year Old Male (Using for 3-5 years)

Consistent brain fog as if my brain is being slowly boiled and a constant anxiety

Habit: Quite a lot basically staying intoxicated entire days/weeks
Brain Fog Experienced: All day
Activities Disrupted: Schoolwork
Timing of Symptoms: Soon after stopping marijuana use within a week of stopping heavy use
Purpose: Recreational purposes only
Date Submitted: September 8, 2021

United States of America | 25 to 34 Year Old Male (Using for 11+ years)

Brain fog, decreased motivation, persistent procrastination (see “decreased motivation”). Inability to take risks. Anxiety, including paranoia. Anhedonia, including flat affect. Decreased enjoyment in formerly enjoyable activities. Struggle to convert words in my head into speech, former eloquence is gone. Reduction in short-term memory.

Habit: Roughly 6-10+ times a day.
Brain Fog Experienced: All day
Activities Disrupted: Work motivation
Timing of Symptoms: Within a couple of days of cessation.
Purpose: Recreational purposes only
Date Submitted: September 8, 2021

United States of America | 18 to 24 Year Old Male (Using for 7-12 months)

I just feel out of it like I understand what I’m doing but I’m questioning my mind a lot just because it doesn’t feel normal I feel just out of it at all times mostly.

Habit: About 12 hits a day on a medical cartridge
Brain Fog Experienced: Most of the day
Activities Disrupted: Social activities
Timing of Symptoms: When I quit smoking mostly I had it randomly during summer but that’s because of medications.
Purpose: Both recreational and medicinal purposes
Date Submitted: September 8, 2021

United States of America | 25 to 34 Year Old Female (Using for 6-10 years)

Foggy brain. Moodiness

Habit: 1 gram a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: 24 hours after stopping consumption
Purpose: Recreational purposes only
Date Submitted: September 7, 2021

United States of America | 35 to 44 Year Old Male (Using for 11+ years)

Depression, brain fog i paranoia

Habit: Too much
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: The day after next
Purpose: Recreational purposes only
Date Submitted: September 7, 2021

United States of America | 18 to 24 Year Old Male (Using for 3-5 years)

I’m having anxiety about the fact that I can’t think straight or remember anything

Habit: I would usually take about 6 or 7 rips of the dab pen throughout the day.
Brain Fog Experienced: Most of the day
Activities Disrupted: Social activities
Timing of Symptoms: They started becoming concerning after the first full week of quitting because I thought the symptoms would lessen.
Purpose: Recreational purposes only
Date Submitted: September 7, 2021

Canada | 18 to 24 Year Old Male (Using for 1-2 years)

I have been experiencing brain fog for the past month, only now am I starting to quit weed. Hopefully it helps. The symptoms I have been experiencing is lack of focus, almost as if I am looking through glass, a constant head pressure, and sometimes anxiety from the previous symptoms.

Habit: I have a very low tolerance so I usually only smoke 1 small bowl every night, however I used to smoke multiple daily.
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: About 3 weeks ago, however I had been smoking almost daily for almost 2 years prior
Purpose: Recreational purposes only
Date Submitted: September 7, 2021

United States of America | 25 to 34 Year Old Male (Using for 11+ years)

Brain fog, dizziness/light headedness, headache

Habit: .3 of concentrate a day
Brain Fog Experienced: Less than an hour a day
Activities Disrupted: Work motivation
Timing of Symptoms: 1 day after cessation
Purpose: Both recreational and medicinal purposes
Date Submitted: September 6, 2021

United Kingdom of Great Britain and Northern Ireland | 18 to 24 Year Old Male (Using for 3-5 years)

Sleep problems Lack of appetite Stress Cravings

Habit: 2-3gs a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: None of the above
Timing of Symptoms: Day after I stopped
Purpose: Recreational purposes only
Date Submitted: September 6, 2021

| 18 to 24 Year Old Queer (Using for 3-5 years)

Vomiting in the mornings, brain fog, muscle weakness, joint pain, lack of coordination, fatigue, headache, anxiety, sad

Habit: ~3g a day
Brain Fog Experienced: All day
Activities Disrupted: Work motivation
Timing of Symptoms: The day after I stoped smoking
Purpose: Both recreational and medicinal purposes
Date Submitted: September 5, 2021

United Republic of Tanzania | 18 to 24 Year Old Male (Using for 1-2 years)

Its been one day but forsure a mind fog and spech interpretations

Habit: I use carts do maybe like 11 hits a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Schoolwork
Timing of Symptoms: Today
Purpose: Recreational purposes only
Date Submitted: September 5, 2021

India | 18 to 24 Year Old Male (Using for 0-6 months)

Brain fog Anger Depression

Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: Since last 6 months i have been experiencing brain fog quite often
Purpose: Recreational purposes only
Date Submitted: September 5, 2021

United Kingdom of Great Britain and Northern Ireland | 25 to 34 Year Old Male (Using for 6-10 years)

Brain fog, low motivation, ocular pressure, mood swings

Habit: 5-1 gram a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: 3 weeks after quitting
Purpose: Recreational purposes only
Date Submitted: September 5, 2021

Israel | 35 to 44 Year Old Female (Using for 3-5 years)

heavy brain fog, restlessness, hot flashes, night sweats, trouble focusing and with executive functioning

Habit: 2 grams a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: immediately
Purpose: Recreational purposes only
Date Submitted: September 5, 2021

United States of America | 25 to 34 Year Old Male (Using for 11+ years)

Laziness forgetfulness anger headaches on and off hotter than usual weird dreams

Habit: A couple grams a day
Brain Fog Experienced: All day
Activities Disrupted: Work productivity
Timing of Symptoms: Day after stopping
Purpose: Both recreational and medicinal purposes
Date Submitted: September 3, 2021

United States of America | 55 to 64 Year Old Male (Using for 3-5 years)

Word retrieval, fatigue

Habit: One toke a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: About three day after stopping
Purpose: Recreational purposes only
Date Submitted: September 3, 2021

United States of America | 25 to 34 Year Old Male (Using for 3-5 years)

Brain fog, mild depression, slurred speech or stumbling over words, inability to think on feet quickly, wake up several times each night, general fatigue

Habit: Few puffs a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work productivity
Timing of Symptoms: First day/night after stopping regular use until few weeks later. Note that I continue to smoke on weekends but no longer every day.
Purpose: Recreational purposes only
Date Submitted: September 3, 2021

Netherlands | 18 to 24 Year Old Female (Using for 7-12 months)

I forget so much. It can be important or not I always forget stuff. I have trouble concentrating, and I have very stressful dreams. I stress way too much and my anxiety level has never been so high.

Habit: 3 joints a day in the afternoon
Brain Fog Experienced: Most of the day
Activities Disrupted: Schoolwork
Timing of Symptoms: the first day of stopping.
Purpose: Recreational purposes only
Date Submitted: September 3, 2021

Canada | 25 to 34 Year Old Male (Using for 6-10 years)

Depression

Habit: 1 gram a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work motivation
Timing of Symptoms: 6 days
Purpose: Recreational purposes only
Date Submitted: September 2, 2021

United States of America | 35 to 44 Year Old Female (Using for 6-10 years)

Sleeping but feel half awake during sleep. Head feels heavy and a bit woozy, basically brain fog. Feel very tired all the time.

Habit: 1-2 joints a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: 3 days after stopping cold turkey.
Purpose: Both recreational and medicinal purposes
Date Submitted: September 1, 2021

United States of America | 35 to 44 Year Old Male (Using for 6-10 years)

Light headed, ringing in ears, lethargic, decision making difficulties, and nausea

Habit: 750-1200 mg THC a day
Brain Fog Experienced: All day
Activities Disrupted: Work productivity
Timing of Symptoms: 1 Day after smoking
Purpose: Both recreational and medicinal purposes
Date Submitted: September 1, 2021

United Kingdom of Great Britain and Northern Ireland | 18 to 24 Year Old Male (Using for 7-12 months)

Brain fog, depersonalization, vivid dreams, sleep paralysis, anxiety, difficulty falling asleep and staying asleep

Habit: 1 roll up not mixed with tobacco each day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work productivity
Timing of Symptoms: A few days after i stopped
Purpose: Recreational purposes only
Date Submitted: September 1, 2021

United States of America | 35 to 44 Year Old Male (Using for 11+ years)

Brain fog and not balance when i stand.

Habit: 1 joint a day
Brain Fog Experienced: Most of the day
Activities Disrupted: None of the above
Timing of Symptoms: 2 days after i quit
Purpose: Both recreational and medicinal purposes
Date Submitted: August 30, 2021

United States of America | 18 to 24 Year Old Male (Using for 1-2 years)

I recently had an opportunity for a job but I had to quit smoking, I feel slower, less social, less active and trying to focus on something is a struggle, it feels like I’m drawing a blank when it comes to conversations.

Habit: About an 8th a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Social activities
Timing of Symptoms: 2 days after I stopped
Purpose: Both recreational and medicinal purposes
Date Submitted: August 30, 2021

Australia | 45 to 54 Year Old Male (Using for 11+ years)

Fatigue at random times. Lack of focus. Irritable. Disruption in sleep patterns. Low feelings.

Habit: 2 grams a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: 2 days minor. 1 week obvious
Purpose: Both recreational and medicinal purposes
Date Submitted: August 30, 2021

United States of America | 18 to 24 Year Old Male (Using for 0-6 months)

Just lack of short term memory

Habit: 1/3 of a gram thc resin, and about 3.5 g of bud a day
Brain Fog Experienced: Most of the day
Activities Disrupted: None of the above
Timing of Symptoms: Today
Purpose: Both recreational and medicinal purposes
Date Submitted: August 30, 2021

Australia | 25 to 34 Year Old Female (Using for 6-10 years)

Gradually reducing and experiencing very vivid dreams and brain fog.

Brain Fog Experienced: All day
Activities Disrupted: None of the above
Timing of Symptoms: As soon as I reduced
Purpose: Recreational purposes only
Date Submitted: August 30, 2021

United States of America | 25 to 34 Year Old Male (Using for 1-2 years)

Brain Fog and lack of thought processing

Habit: 2 grams
Brain Fog Experienced: All day
Activities Disrupted: Work motivation
Timing of Symptoms: 4 days ago
Purpose: Medicinal purposes only
Date Submitted: August 30, 2021

Canada | 18 to 24 Year Old Male (Using for 1-2 years)

Brain fog, sleeplessness, appetite loss, irritability, nauseous

Habit: A couple grams a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: The day I stopped smoking
Purpose: Both recreational and medicinal purposes
Date Submitted: August 29, 2021

United States of America | 25 to 34 Year Old Male (Using for 3-5 years)

brain fog, lack of energy

Habit: one gram a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work productivity
Timing of Symptoms: two days
Purpose: Recreational purposes only
Date Submitted: August 28, 2021

United Kingdom of Great Britain and Northern Ireland | 18 to 24 Year Old Male (Using for 0-6 months)

Difficulty remembering things, feel slower, and a little disconnected with my body

Habit: 1 gram a day
Brain Fog Experienced: All day
Activities Disrupted: Work productivity
Timing of Symptoms: The day after
Purpose: Recreational purposes only
Date Submitted: August 28, 2021

| 18 to 24 Year Old Male (Using for 1-2 years)

Even more brain fog then when I was using, it’s been a week and still foggy, I smoked for about 2 years straight as a heavy user with wax being main consumption method

Habit: About 5-10 dabs a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work motivation
Timing of Symptoms: 2 days after
Purpose: Both recreational and medicinal purposes
Date Submitted: August 28, 2021

Canada | 35 to 44 Year Old Male (Using for 11+ years)

Trouble sleeping, vivid dreams, brain fog mid day.

Habit: 1-2 normal joints a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work productivity
Timing of Symptoms: Right away
Purpose: Recreational purposes only
Date Submitted: August 27, 2021

Brazil | 25 to 34 Year Old Male (Using for 6-10 years)

Foggy brain

Habit: I used to smoke half a joint a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Social activities
Timing of Symptoms: Like a week Ago, and it’s been a month since i last smoked
Purpose: Recreational purposes only
Date Submitted: August 27, 2021

United Kingdom of Great Britain and Northern Ireland | 18 to 24 Year Old Male (Using for 1-2 years)

I’ll be somewhat alright for the first 5-6hrs of the day, where I am pretty productive and can get tasks done. After this period I have a heavy onset of brain fog, extremely short temper and inability to focus on anything. I have horrible headaches, my sleep and appetite isn’t exactly back to normal yet

Habit: Probably a gram a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: The above symptoms mostly the mental capacity started 2 weeks after stopping. Obviously the first two weeks had its own struggles but normality is coming and goes and I feel like I’m currently two different people in one body:
Purpose: Both recreational and medicinal purposes
Date Submitted: August 26, 2021

United States of America | 18 to 24 Year Old Male (Using for 1-2 years)

cant focus and eye sight is seeing the world in frames per second per say

Brain Fog Experienced: All day
Activities Disrupted: Social activities
Timing of Symptoms: theyve been here forever
Purpose: Recreational purposes only
Date Submitted: August 26, 2021

United Kingdom of Great Britain and Northern Ireland | 18 to 24 Year Old Male (Using for 3-5 years)

Anxiety -Irritable -Brian fog -Trouble concentrating -Lack of interest in things -Short temper -Depression

Habit: 5-6 times a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: After stopping smoking Always had those symptoms but weed helped mask them and make me calmer
Purpose: Both recreational and medicinal purposes
Date Submitted: August 26, 2021

South Africa | 18 to 24 Year Old Male (Using for 3-5 years)

My head feels fuzzy.

Habit: Two grams a day
Brain Fog Experienced: All day
Activities Disrupted: Schoolwork
Timing of Symptoms: A day after I quit.
Purpose: Recreational purposes only
Date Submitted: August 26, 2021

Australia | 25 to 34 Year Old Female (Using for 1-2 years)

Lack of concentration, lack of verbal filtering, lack of motivation

Brain Fog Experienced: All day
Activities Disrupted: Work productivity
Timing of Symptoms: The next day after I stopped smoking
Purpose: Both recreational and medicinal purposes
Date Submitted: August 25, 2021

United States of America | 18 to 24 Year Old Female (Using for 0-6 months)

Brain fog, sweating profusely during sleep, short term memory

Habit: 1-2 gummies (Delta 8) a day
Brain Fog Experienced: All day
Activities Disrupted: Work productivity
Timing of Symptoms: A few days after I stopped using
Purpose: Recreational purposes only
Date Submitted: August 25, 2021

United States of America | 25 to 34 Year Old Female (Using for 11+ years)

lack of concentration, irritability

Habit: 1g a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: 12 hours after last use
Purpose: Recreational purposes only
Date Submitted: August 25, 2021

Slovenia | 25 to 34 Year Old Male (Using for 1-2 years)

Brain fog, i couldnt sleep well, i couldnt talk to my girlfriend, i was stress out, and i had feeling that noting metters to me, i didnt tink well

Habit: 2g -3g a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Social activities
Timing of Symptoms: After 4 days
Purpose: Recreational purposes only
Date Submitted: August 25, 2021

United States of America | 25 to 34 Year Old Female (Using for 1-2 years)

Brain fog, loss of appetite, insomnia, irritability, anxiety, inability to concentrate, hop from topic to topic, forgetful

Habit: After 6 p.m. I smoked 3 long “draws” from a blunt, and then usually again before bed around 9 p.m.
Brain Fog Experienced: All day
Activities Disrupted: Social activities
Timing of Symptoms: 2 days after not smoking
Purpose: Both recreational and medicinal purposes
Date Submitted: August 24, 2021

Turkey | 18 to 24 Year Old Male (Using for 1-2 years)

diffuculty concentrating, bad memory, anxiety and depression for the first 2 week

Habit: 5 gr a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work productivity
Timing of Symptoms: 2 days after ı stopped uısing
Purpose: Recreational purposes only
Date Submitted: August 24, 2021

| 18 to 24 Year Old Female (Using for 7-12 months)

Feeling slow Feeling that my body and my brain is in sync with each other Forgetting stuff easily

Habit: Don’t know
Brain Fog Experienced: A few hours each day
Activities Disrupted: None of the above
Timing of Symptoms: The day after smoking weed
Purpose: Recreational purposes only
Date Submitted: August 24, 2021

United States of America | 55 to 64 Year Old Female (Using for 1-2 years)

Brain fog, sleepless nights, tiredness during the day, malaise ,

Habit: 4-6 msg.
Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: Two days after stopping
Purpose: Both recreational and medicinal purposes
Date Submitted: August 23, 2021

Canada | 18 to 24 Year Old Female (Using for 0-6 months)

Memory loss, unable to focus, problem solving skills decrease, detached from reality

Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: After “greening out”, smoked too much decided to take a break. Been 2/3 days since and still have brain fog
Purpose: Both recreational and medicinal purposes
Date Submitted: August 22, 2021

Canada | 35 to 44 Year Old Male (Using for 7-12 months)

Brain fog, serious attention and concentration problems, difficulty speaking fluently as before.

Habit: A single inhale every night.
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: Around a few weeks ago.
Purpose: Recreational purposes only
Date Submitted: August 22, 2021

United States of America | 18 to 24 Year Old Female (Using for 3-5 years)

Brain fog, drowsiness, eyelids are heavy

Habit: I use a wax pen every day, a full gram cartridge lasts 1-2 weeks.
Brain Fog Experienced: Most of the day
Activities Disrupted: Social activities
Timing of Symptoms: A day or two after I stopped smoking (one week ago).
Purpose: Recreational purposes only
Date Submitted: August 21, 2021

United States of America | 65 to 74 Year Old Male (Using for 11+ years)

Major brain fog and somewhat of a lack of coordination. Sleeplessness as well

Habit: 3 joints a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: Several days after quitting
Purpose: Recreational purposes only
Date Submitted: August 21, 2021

United States of America | 18 to 24 Year Old Male (Using for 3-5 years)

I zone out sometimes and don’t realize it. My vision is harder to focus. My anxiety is higher. Sometimes I think about breathing and must do it manually.

Habit: When I do smoke, I vape flower, about one half to one bowls a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Schoolwork
Timing of Symptoms: I greened out a few nights ago and I haven’t smoked since. They have been consistent since then.
Purpose: Recreational purposes only
Date Submitted: August 21, 2021

United States of America | 25 to 34 Year Old Male (Using for 11+ years)

Out of sync with onself as if i do not exist

Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: 2 weeks after quitting
Purpose: Both recreational and medicinal purposes
Date Submitted: August 21, 2021

United States of America | 25 to 34 Year Old Male (Using for 3-5 years)

I feel like I’m asleep when I’m awake. Difficulty prioritizing and organizing myself at work. Hard time remembering new names or numbers.

Habit: I Vape, so I would vape a bit after getting home from work until I went to bed.
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: 2 days after quitting
Purpose: Both recreational and medicinal purposes
Date Submitted: August 20, 2021

Morocco | 25 to 34 Year Old Male (Using for 7-12 months)

Loss of appetite. Poor sleep quality. Anxiety. Foggy head inable to concentrate on work or even think clearly about my daily activitied

Brain Fog Experienced: Most of the day
Activities Disrupted: Social activities
Timing of Symptoms: 1 day after last use
Purpose: Recreational purposes only
Date Submitted: August 20, 2021

United States of America | 18 to 24 Year Old Female (Using for 3-5 years)

intense headaches and brain fog feeling that makes me feel unstable sometimes to the point where I feel like I need to stay in bed. loss of appetite and in general, happiness. difficulty sleeping and staying asleep.

Habit: I go through about an oz every week to 2 weeks depending on how often I light up. Daily I wake up and smoke and then go to work for 4-5 hours and come home and smoke whenever I feel like it, at least 10+ times per day Id say.
Brain Fog Experienced: All day
Activities Disrupted: Work motivation
Timing of Symptoms: today is my 4th day sober and it started on the first or second day, I can’t remember.
Purpose: Both recreational and medicinal purposes
Date Submitted: August 19, 2021

United States of America | 18 to 24 Year Old Male (Using for 0-6 months)

I have this issue of being in and out of stages of fog-like states. Sometimes in the morning, I feel very clear, but then during football practice or when I’m driving I can complete tasks but I just feel like hours have passed when only minutes have

Habit: Basically none but I have been hanging with friends from sports, so I had a week where I used it 3 times in 8 days.
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: About 18 hours after my last use of marijuana. I also used it while abusing alcohol, leading me to throw up.
Purpose: Recreational purposes only
Date Submitted: August 19, 2021

Canada | 18 to 24 Year Old Male (Using for 1-2 years)

Brain fog, short term memory loss, fatigue.

Habit: 1/3 to 1/2 a joint a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: Immediately after quitting
Purpose: Both recreational and medicinal purposes
Date Submitted: August 19, 2021

United States of America | 25 to 34 Year Old Male (Using for 6-10 years)

Brain fog, nightmares, mood swings

Habit: Was once or twice a month before pandemic, became every other day during the last 6 months of pandemic
Brain Fog Experienced: A few hours each day
Activities Disrupted: None of the above
Timing of Symptoms: 3 day after quitting
Purpose: Recreational purposes only
Date Submitted: August 19, 2021

United States of America | 18 to 24 Year Old Male (Using for 0-6 months)

Focus is difficult, sometimes leads to beaches but normally just slower

Habit: .15-.2 grams a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: While quitting
Purpose: Both recreational and medicinal purposes
Date Submitted: August 19, 2021

United Kingdom of Great Britain and Northern Ireland | 18 to 24 Year Old Male (Using for 1-2 years)

Brain fog, irritability, inability to utilise vocabulary in conversation to usual standard, increased anxiety, fluctuated depression.

Habit: 3-4 relatively small joints spread throughout the day
Brain Fog Experienced: All day
Activities Disrupted: Social activities
Timing of Symptoms: Within a week of quitting (abruptly)
Purpose: Both recreational and medicinal purposes
Date Submitted: August 18, 2021

United States of America | 35 to 44 Year Old Male (Using for 1-2 years)

Liver pain, brain fog, body aches, sleep disturbances

Brain Fog Experienced: Most of the day
Activities Disrupted: Social activities
Timing of Symptoms: 2 weeks
Purpose: Both recreational and medicinal purposes
Date Submitted: August 18, 2021

Canada | 25 to 34 Year Old Female (Using for 1-2 years)

Nightsweats, nightmares and weird dreams, loss of appetite, trouble remembering stuff

Habit: 4 really potent joints a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: None of the above
Timing of Symptoms: Same night of stopping weed. The symptoms vary each night, soemtimes a combination of all at a time, trouble sleeping.
Purpose: Both recreational and medicinal purposes
Date Submitted: August 17, 2021

United States of America | 18 to 24 Year Old Female (Using for 7-12 months)

headaches sometimes, brain fog 100%!!!!!!, irritability, impatience, sadness, fatigue all the time

Habit: Half a gram a day
Brain Fog Experienced: All day
Activities Disrupted: Schoolwork
Timing of Symptoms: right when i stopped
Purpose: Both recreational and medicinal purposes
Date Submitted: August 16, 2021

Australia | 25 to 34 Year Old Male (Using for 6-10 years)

Apathy, sadness, avoidance, obsessiveness, difficulty focusing

Habit: 5 grams a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: In the days after stopping use
Purpose: Both recreational and medicinal purposes
Date Submitted: August 16, 2021

| 35 to 44 Year Old Male (Using for )

Lack of concerntration Insomnia

Brain Fog Experienced: A few hours each day
Activities Disrupted: None of the above
Timing of Symptoms: 5 days after stopping
Purpose: Both recreational and medicinal purposes
Date Submitted: August 16, 2021

| 35 to 44 Year Old Male (Using for )

Lack of concerntration Insomnia

Brain Fog Experienced: A few hours each day
Activities Disrupted: None of the above
Timing of Symptoms: 5 days after stopping
Purpose: Both recreational and medicinal purposes
Date Submitted: August 16, 2021

United States of America | 25 to 34 Year Old Male (Using for 1-2 years)

Heavy head , slow responses

Habit: 5-2 grams a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms:
Purpose: Both recreational and medicinal purposes
Date Submitted: August 13, 2021

United States of America | 18 to 24 Year Old Male (Using for 3-5 years)

mental fog and increased distress

Habit: I used to smoke 3-6 times a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work productivity
Timing of Symptoms: 1-3 days after quiting
Purpose: Recreational purposes only
Date Submitted: August 13, 2021

United States of America | 25 to 34 Year Old Female (Using for 11+ years)

Head fog, depression, irritability, lethargy, excessive sleeping, confusion, a feeling of being lost, verbal memory loss, forgetfulness.

Habit: Chain smoker
Brain Fog Experienced: Most of the day
Activities Disrupted: Social activities
Timing of Symptoms: As soon as I stopped smoking
Purpose: Both recreational and medicinal purposes
Date Submitted: August 13, 2021

United States of America | 18 to 24 Year Old Male (Using for 1-2 years)

Brain fog

Brain Fog Experienced: Most of the day
Activities Disrupted: None of the above
Timing of Symptoms: Right after I stoped
Purpose: Recreational purposes only
Date Submitted: August 13, 2021

United States of America | 45 to 54 Year Old Male (Using for 6-10 years)

Difficulty concentrating; short-term memory impairment; increased anxiety/jitters/nail-biting; headaches; ears ringing; vivid dreams

Habit: 3-5 vape hits and/or 5-10mg high-potency edibles each day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work productivity
Timing of Symptoms: 3 days after quitting
Purpose: Both recreational and medicinal purposes
Date Submitted: August 12, 2021

Canada | 35 to 44 Year Old Male (Using for 11+ years)

Trouble sleeping, wild dreams when I do sleep & brain fog

Habit: .75g a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work productivity
Timing of Symptoms: The first full day without smoking
Purpose: Both recreational and medicinal purposes
Date Submitted: August 12, 2021

United States of America | 35 to 44 Year Old Female (Using for 11+ years)

Shaky, manic, cried nonstop the first three days, hopelessness and anxiety. Aggravation for no reason and an exaggerated response to life.

Habit: Alot
Brain Fog Experienced: Most of the day
Activities Disrupted: Social activities
Timing of Symptoms: First day
Purpose: Both recreational and medicinal purposes
Date Submitted: August 12, 2021

Canada | 25 to 34 Year Old Male (Using for 6-10 years)

inability to be in the present moment for long periods of time, on edge emotionally, bad short term memory, constant mental buzz/fog

Habit: Max 0.5 gram in a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: have been on and off in severity for years, starting when I was 17, still around now that I’m 25
Purpose: Recreational purposes only
Date Submitted: August 10, 2021

Italy | 18 to 24 Year Old Female (Using for 3-5 years)

brain fog, mental and physical fatigue

Habit: 3-4 joints a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Social activities
Timing of Symptoms: 2 weeks after i stopped
Purpose: Recreational purposes only
Date Submitted: August 10, 2021

United Kingdom of Great Britain and Northern Ireland | 45 to 54 Year Old Male (Using for 11+ years)

anxiety, depression, lots of dreams and sweat at night and a sight feeling of paranoid

Habit: one spliff a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Social activities
Timing of Symptoms: after the 4th day of quitting
Purpose: Recreational purposes only
Date Submitted: August 10, 2021

Saudi Arabia | 25 to 34 Year Old Male (Using for 3-5 years)

Insomnia, depressed mode, restlessness, brain fog, loss of appetite

Habit: I vape about 3 ml of THC infused juice a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work productivity
Timing of Symptoms: About 12 hours after last ingestion
Purpose: Recreational purposes only
Date Submitted: August 10, 2021

United States of America | 25 to 34 Year Old Male (Using for 1-2 years)

Brain fog, headache, nausea, insomnia

Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: A few days after quiting
Purpose: Both recreational and medicinal purposes
Date Submitted: August 10, 2021

Canada | 35 to 44 Year Old Male (Using for 11+ years)

Lost of appetite. Lost 15 pounds in 8 days. Tiredness Brain fog Craving Night cold sweat

Habit: 6 to 8 grams a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: None of the above
Timing of Symptoms: 2-3 days
Purpose: Recreational purposes only
Date Submitted: August 9, 2021

Canada | 45 to 54 Year Old Male (Using for 11+ years)

Foggy headed

Habit: 3 g a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work productivity
Timing of Symptoms: Week 3
Purpose: Recreational purposes only
Date Submitted: August 9, 2021

United States of America | 45 to 54 Year Old Male (Using for 11+ years)

Anxiety, depression, intrusive thoughts, insomnia, lack of joy in activities.

Habit: One toke a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work productivity
Timing of Symptoms: Around 10 days after quitting
Purpose: Both recreational and medicinal purposes
Date Submitted: August 8, 2021

Switzerland | 18 to 24 Year Old Male (Using for 3-5 years)

cold sweat and extreme cravings

Habit: Around 2 grams a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: About 12 hours after quitting
Purpose: Both recreational and medicinal purposes
Date Submitted: August 7, 2021

United States of America | 25 to 34 Year Old Female (Using for 0-6 months)

Brain fog, anxiety, depression

Habit: 3 hits from a vape a day
Brain Fog Experienced: All day
Activities Disrupted: Work productivity
Timing of Symptoms: One day after stopping
Purpose: Medicinal purposes only
Date Submitted: August 6, 2021

United States of America | 25 to 34 Year Old Female (Using for 11+ years)

Anxiety, light depression, incredibly vivid dreams, increase in appetite (when smoking, I’d have coffee and maybe 1 or 2 small meals per day), night sweats but they’ve since stopped, brain fog, trouble with memory and concentration

Habit: 4 grams a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work motivation
Timing of Symptoms: Within a day of quitting
Purpose: Recreational purposes only
Date Submitted: August 6, 2021

United States of America | 25 to 34 Year Old Male (Using for 1-2 years)

Lack of ability to formulate sentences (varies, some days better than others). Lack of long term planning, lack of critical thinking

Habit: 5 grams a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Schoolwork
Timing of Symptoms: Mine began as I was smoking and is currently persisting for three weeks after stoping.
Purpose: Recreational purposes only
Date Submitted: August 6, 2021

United States of America | 18 to 24 Year Old Female (Using for 0-6 months)

brain fog, problems sleeping and eating

Habit: around 20-30 cart hits a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work motivation
Timing of Symptoms: the day i stopped
Purpose: Both recreational and medicinal purposes
Date Submitted: August 6, 2021

United States of America | 18 to 24 Year Old Male (Using for 3-5 years)

Its hard for me to focus on TV and some other tasks. Sometimes I feel like I just cant *see* things the way I’m meant to. It makes me anxious of course and scares me a bit, but thats only because I have an anxiety disorder.

Habit: About 1 gram of dab wax every few days. God dammit. Sigh.
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: One day after quitting.
Purpose: Both recreational and medicinal purposes
Date Submitted: August 6, 2021

Canada | 18 to 24 Year Old Male (Using for 0-6 months)

Sleeplessness impaired ability to think

Habit: .5 grams a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: Right after quiting
Purpose: Both recreational and medicinal purposes
Date Submitted: August 5, 2021

United States of America | 25 to 34 Year Old Attack Helicopter (Using for 7-12 months)

nightmares, a bit of brain fog, a little boredom, but otherwise rejuvenated

Habit: Two joints in the morning, two joints at night
Brain Fog Experienced: A few hours each day
Activities Disrupted: None of the above
Timing of Symptoms: About a week after stopping
Purpose: Recreational purposes only
Date Submitted: August 5, 2021

United States of America | 25 to 34 Year Old Female (Using for 11+ years)

Foggy brain, irritability, depressed

Brain Fog Experienced: A few hours each day
Activities Disrupted: Work productivity
Timing of Symptoms: Within a few days of quitting
Purpose: Both recreational and medicinal purposes
Date Submitted: August 5, 2021

Canada | 18 to 24 Year Old Non-binary (Using for 1-2 years)

difficulty thinking, lack of general awareness of what’s going on around me at times, very very forgetful of many things.

Habit: maybe 4-7 grams a day, very heavy use
Brain Fog Experienced: Most of the day
Activities Disrupted: Social activities
Timing of Symptoms: after starting a tolerance break
Purpose: Both recreational and medicinal purposes
Date Submitted: August 5, 2021

| 18 to 24 Year Old Male (Using for 3-5 years)

brain fog higher anxiety in the beginning 3 months in still brain fog maybe more not being able to focus on a task drifting away thoughts

Habit: not less than 2-3 grams a day (could reach 7-8)
Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: the same day of stopping
Purpose: Recreational purposes only
Date Submitted: August 4, 2021

United States of America | 18 to 24 Year Old Male (Using for 7-12 months)

i cant think straight. easily distracted and can’t make complex decisions without long, dedicated thought

Habit: a few milligrams a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Schoolwork
Timing of Symptoms: as i started habitually smoking.
Purpose: Recreational purposes only
Date Submitted: August 4, 2021

United States of America | 25 to 34 Year Old Male (Using for 11+ years)

Chills, sweats, memory trouble.

Habit: 1 gram a day
Brain Fog Experienced: All day
Activities Disrupted: Work productivity
Timing of Symptoms: 3 to 4 days after quitting
Purpose: Recreational purposes only
Date Submitted: August 4, 2021

United States of America | 18 to 24 Year Old Male (Using for 3-5 years)

brain fog, headaches, anxiety, poor sleep, less pleasure in life

Habit: .5-1g a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Social activities
Timing of Symptoms: 2 days after smoking
Purpose: Both recreational and medicinal purposes
Date Submitted: August 4, 2021

Australia | 25 to 34 Year Old Male (Using for 6-10 years)

Brain fog lack of concentration mood swings lack of motivation insomnia

Habit: 2-3 grams a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: First day after giving up weed it peeks for the first 3 days then starts to decline it’s my 3rd week without weed and I still feel agitated lack of concentration mood swings but the insomnia has died down
Purpose: Recreational purposes only
Date Submitted: August 4, 2021

United States of America | 25 to 34 Year Old Male (Using for 6-10 years)

Brain fog Speech problems Anxiety

Habit: 1 gram a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Social activities
Timing of Symptoms: Months ago
Purpose: Recreational purposes only
Date Submitted: August 3, 2021

United States of America | 45 to 54 Year Old Female (Using for 6-10 years)

Headaches, nausea, anger, impatience, depression

Habit: Two to three grams per day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Social activities
Timing of Symptoms: Day one
Purpose: Recreational purposes only
Date Submitted: August 3, 2021

Norway | 25 to 34 Year Old Male (Using for 11+ years)

Brain fog as descibed above.

Habit: 5-1 g a day
Brain Fog Experienced: All day
Activities Disrupted: Work motivation
Timing of Symptoms: Third day after quiting.
Purpose: Recreational purposes only
Date Submitted: August 3, 2021

United States of America | 18 to 24 Year Old Female (Using for 1-2 years)

Anxiety spikes, Depressive thoughts, panic attack, feeling very blurry

Habit: Usually one small bowl hit at night
Brain Fog Experienced: All day
Activities Disrupted: Social activities
Timing of Symptoms: a couple of days ago
Purpose: Recreational purposes only
Date Submitted: August 2, 2021

United States of America | 18 to 24 Year Old Female (Using for 1-2 years)

Head feels light, attention difficulties, spacing out, irritation

Habit: At night a couple hours before bed and again before bed to sleep
Brain Fog Experienced: Most of the day
Activities Disrupted: Social activities
Timing of Symptoms: Around 24 hours after smoking
Purpose: Both recreational and medicinal purposes
Date Submitted: August 2, 2021

United States of America | 18 to 24 Year Old Male (Using for 0-6 months)

Memory fog, trouble sleeping

Habit: Unsure
Brain Fog Experienced: A few hours each day
Activities Disrupted: None of the above
Timing of Symptoms: Two days after quitting
Purpose: Recreational purposes only
Date Submitted: August 2, 2021

United States of America | 25 to 34 Year Old Female (Using for 1-2 years)

foggy, out of sync with myself. disconnected.

Habit: half a gram a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: when I stopped smoking
Purpose: Both recreational and medicinal purposes
Date Submitted: August 2, 2021

United States of America | 55 to 64 Year Old Male (Using for 11+ years)

Forgetfulness

Habit: 8 knees or so
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work motivation
Timing of Symptoms: When I stop
Purpose: Recreational purposes only
Date Submitted: August 2, 2021

Trinidad and Tobago | 18 to 24 Year Old Female (Using for 0-6 months)

Difficulty remembering, Lack of concentration, almost like if I am not “real”, difficulty sleeping, like there is a cloud in my mind

Brain Fog Experienced: All day
Activities Disrupted: Work motivation
Timing of Symptoms: Two weeks after consuming large amounts of edibles
Purpose: Recreational purposes only
Date Submitted: August 1, 2021

Belgium | 18 to 24 Year Old Male (Using for 1-2 years)

Tiredness, i find it difficult to concentrate. Memory loss

Habit: 2 joints a day
Brain Fog Experienced: All day
Activities Disrupted: Social activities
Timing of Symptoms: I had them even before i quit smoking weed. They are the reason why i stopped.
Purpose: Recreational purposes only
Date Submitted: August 1, 2021

United States of America | 45 to 54 Year Old Male (Using for 1-2 years)

short term memory loss, trouble concentrating, low appetite, excessive sweating especially at night while trying to sleep

Habit: 1/2 to 1 gram a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: Day after I decided to quit
Purpose: Recreational purposes only
Date Submitted: August 1, 2021

Canada | 45 to 54 Year Old Male (Using for 11+ years)

brain fog, irritability, depressed mood, anxiery

Habit: 2-3 puffs a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: 24 hours after last consumption of marijuana
Purpose: Both recreational and medicinal purposes
Date Submitted: August 1, 2021

United States of America | 25 to 34 Year Old Female (Using for 6-10 years)

I am tired, unable to concentrate for long, a mild headache surrounding my entire head and i have no energy. Generally lethargic.

Habit: 1 to 2 grams a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: First day of no marijuana.
Purpose: Both recreational and medicinal purposes
Date Submitted: July 31, 2021

United States of America | 35 to 44 Year Old Male (Using for 7-12 months)

Headaches, brain fog, anxiety

Habit: At the height (which was last week) I was using a vape and taking about 8 – 10 “puffs” a day. The THC was around 75%.
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: The next day. Howe er, they were not bad. They really increased on day 3 or 4.
Purpose: Both recreational and medicinal purposes
Date Submitted: July 31, 2021

United States of America | 18 to 24 Year Old Female (Using for 3-5 years)

Intense brain fog, forgetfulness, difficulties with short term memory, staying focused, speaking, I’ve NEVER had social anxiety before but, for some reason I’ve been getting really anxious in social settings. I freeze up and don’t know what to say. Even around people I know. I will feel confused and not quite able to understand things after I’ve read them or even during conversation with others, which is embarrassing and upsetting. I have trouble articulating my thoughts accurately, as well; something I’ve never dealt with, which can be extremely frustrating. I stumble over my words or have trouble speaking.

Habit: It depends. A few years back I was smoking a ridiculous amount. Like a gram a day if not more. In the past year or so it was much less. Going through a gram a week on average.
Brain Fog Experienced: Most of the day
Activities Disrupted: Social activities
Timing of Symptoms: Before I fully quit, actually. I have now been sober from cannabis for nearly 2 months.
Purpose: Recreational purposes only
Date Submitted: July 31, 2021

Canada | 25 to 34 Year Old Male (Using for 6-10 years)

headache, difficulty concentrating, some difficulty with memory

Habit: <1 g/day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work motivation
Timing of Symptoms: 1 week after stopping
Purpose: Both recreational and medicinal purposes
Date Submitted: July 30, 2021

Canada | 18 to 24 Year Old Male (Using for 3-5 years)

Insomnia Brain fog Depression Memory loss

Habit: 2 grams a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: 24h after last smoking marijuana
Purpose: Both recreational and medicinal purposes
Date Submitted: July 30, 2021

Denmark | 25 to 34 Year Old Male (Using for 0-6 months)

Hard time focusing. Cant find the right words in conversations. Having a hard time participating in longer conversations with others because i often forget half of what they just said or maybe i just could not pay attention to what they were saying for more than a few seconds at a time.

Habit: Every 2 weekends the last few months.
Brain Fog Experienced: Most of the day
Activities Disrupted: Social activities
Timing of Symptoms: Around 3-4 days after the last time I was smoking a joint.
Purpose: Recreational purposes only
Date Submitted: July 29, 2021

United States of America | 18 to 24 Year Old Male (Using for 1-2 years)

Slight lightheaded feeling, Unbalance, nausea

Brain Fog Experienced: Most of the day
Activities Disrupted: Social activities
Timing of Symptoms: First few days of quitting marijuana
Purpose: Recreational purposes only
Date Submitted: July 29, 2021

Albania | 25 to 34 Year Old Male (Using for 6-10 years)

couldnt breathe properly, almost died, after years and years of smoking weed.

Habit: Used to smoke 4 joints a day, but its been a year since ive quit, but still brain fog from time to time, i cant focus at all on anything, its like being drunk but sober, like being sleep but awake.
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work motivation
Timing of Symptoms: last year summer, this year in summer aswell
Purpose: Recreational purposes only
Date Submitted: July 29, 2021

United States of America | 25 to 34 Year Old Female (Using for 6-10 years)

Irritability, brain fog, lack of motivation, lack of concentration

Habit: 1 gram a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: 1 week after quitting
Purpose: Both recreational and medicinal purposes
Date Submitted: July 28, 2021

United States of America | 35 to 44 Year Old Male (Using for 11+ years)

Brain-fog; irritation; insomnia ; nervousness;

Habit: 3-5 grams a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Social activities
Timing of Symptoms: After about 3 days of stopping use.
Purpose: Both recreational and medicinal purposes
Date Submitted: July 27, 2021

United States of America | 25 to 34 Year Old Male (Using for 3-5 years)

Brain fog, random highs, no appetite

Habit: .5 grams a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: None of the above
Timing of Symptoms: Immediately
Purpose: Both recreational and medicinal purposes
Date Submitted: July 26, 2021

United States of America | 18 to 24 Year Old Female (Using for 1-2 years)

Cold sweats Brain fog Disassociation Mood swings Lack of appetite Chronic nausea and vomiting Weight loss Achy joints

Habit: 1-3 bowls depending
Brain Fog Experienced: All day
Activities Disrupted: Work motivation
Timing of Symptoms: Within 24 hours
Purpose: Recreational purposes only
Date Submitted: July 26, 2021

Croatia | 18 to 24 Year Old Male (Using for 3-5 years)

Feeling foggy, can’t concentrate, difficulty making decisions, anxiety

Habit: 5 g a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: 2 days after quitting
Purpose: Both recreational and medicinal purposes
Date Submitted: July 26, 2021

Canada | 55 to 64 Year Old Male (Using for 11+ years)

nothing significant

Habit: 1/50th a gram a day
Brain Fog Experienced: Less than an hour a day
Activities Disrupted: None of the above
Timing of Symptoms: not applicable
Purpose: Both recreational and medicinal purposes
Date Submitted: July 26, 2021

United States of America | 18 to 24 Year Old Male (Using for 3-5 years)

Brain fog, lack of motivation, sluggish, sad mood, difficulty with mindfulness

Habit: 3g a day
Brain Fog Experienced: All day
Activities Disrupted: Work productivity
Timing of Symptoms: Whenever I halt a consecutive streak of smoking cannabis.
Purpose: Recreational purposes only
Date Submitted: July 25, 2021

United States of America | 35 to 44 Year Old Female (Using for 7-12 months)

Fatigue, sweats, brain fog, hunger and irritability

Habit: At least one joint .5 grams sometimes 2 grams each day
Brain Fog Experienced: Most of the day
Activities Disrupted: None of the above
Timing of Symptoms: Day one
Purpose: Recreational purposes only
Date Submitted: July 25, 2021

United States of America | 45 to 54 Year Old Male (Using for 11+ years)

Dull mentally, trouble eating

Habit: All day smoking and vaping
Brain Fog Experienced: All day
Activities Disrupted: Social activities
Timing of Symptoms: 1 day after quitting
Purpose: Recreational purposes only
Date Submitted: July 24, 2021

United States of America | 35 to 44 Year Old Female (Using for 11+ years)

Mood swings, sleeplessness, chills, anxiety, extreme hunger, vivid dreams/nightmares, headaches

Habit: A couple hits every hour
Brain Fog Experienced: A few hours each day
Activities Disrupted: Social activities
Timing of Symptoms: Within 24hr of quitting
Purpose: Both recreational and medicinal purposes
Date Submitted: July 23, 2021

Saudi Arabia | 18 to 24 Year Old Male (Using for 0-6 months)

Brain empty

Brain Fog Experienced: Most of the day
Activities Disrupted: None of the above
Timing of Symptoms: After I decreased the smoking
Purpose: Recreational purposes only
Date Submitted: July 23, 2021

United States of America | 25 to 34 Year Old Female (Using for 3-5 years)

Difficulty concentrating, forgetfulness, spacing out, forgetting what I was doing or talking about

Habit: Up to a gram a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: A few days after I stopped smoking
Purpose: Both recreational and medicinal purposes
Date Submitted: July 22, 2021

United States of America | 18 to 24 Year Old Male (Using for 6-10 years)

I can’t think, i get tired really easily and my communication skills is off.

Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: after long term use of weed
Purpose: Recreational purposes only
Date Submitted: July 22, 2021

United States of America | 18 to 24 Year Old Male (Using for 1-2 years)

Feel like I am in a dream state

Habit: Two joints a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work productivity
Timing of Symptoms: This morning
Purpose: Recreational purposes only
Date Submitted: July 22, 2021

Norway | 18 to 24 Year Old Male (Using for 0-6 months)

Shorter attention span mostly

Habit: Unsure, not that much
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work productivity
Timing of Symptoms: 3 days after i stopped smoking
Purpose: Recreational purposes only
Date Submitted: July 22, 2021

Iran (Islamic Republic of) | 25 to 34 Year Old Male (Using for 0-6 months)

memory loss. unable to think. unable to converse

Habit: 2-3 times a week
Brain Fog Experienced: Most of the day
Activities Disrupted: Social activities
Timing of Symptoms: I dont remember
Purpose: Recreational purposes only
Date Submitted: July 21, 2021

Georgia | 18 to 24 Year Old Male (Using for 0-6 months)

dizziness not being able to remember much or do anything my body is here but my head isn’t

Brain Fog Experienced: Most of the day
Activities Disrupted: None of the above
Timing of Symptoms: a few hours after feeling it very intensely for the first few hours
Purpose: Recreational purposes only
Date Submitted: July 21, 2021

United States of America | 18 to 24 Year Old Male (Using for 3-5 years)

Tired, bored, unmotivated

Habit: .5 grams a day
Brain Fog Experienced: All day
Activities Disrupted: Social activities
Timing of Symptoms: After I stopped cold turkey
Purpose: Both recreational and medicinal purposes
Date Submitted: July 20, 2021

United States of America | 18 to 24 Year Old Male (Using for 7-12 months)

Out of touch with reality. Trapped inside my mind. Hard to think and remember.

Brain Fog Experienced: All day
Activities Disrupted: Work motivation
Timing of Symptoms: 12th of July 2021
Purpose: Both recreational and medicinal purposes
Date Submitted: July 20, 2021

Canada | 35 to 44 Year Old Male (Using for 11+ years)

brain fog in the morning

Habit: Once a day.
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work productivity
Timing of Symptoms: After smoking weed on a regular basis
Purpose: Recreational purposes only
Date Submitted: July 20, 2021

Israel | 18 to 24 Year Old Male (Using for 3-5 years)

brain fog, fatigue, loss of appetite, irritation, sleepiness

Habit: a gram a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Schoolwork
Timing of Symptoms: two days after last smoking
Purpose: Recreational purposes only
Date Submitted: July 19, 2021

Canada | 35 to 44 Year Old Male (Using for 11+ years)

Brain fog, feel empty. Memory

Habit: 2 grams a day
Brain Fog Experienced: Most of the day
Activities Disrupted: None of the above
Timing of Symptoms: 24 hours after last dose
Purpose: Both recreational and medicinal purposes
Date Submitted: July 18, 2021

France | 18 to 24 Year Old Male (Using for 3-5 years)

Mood changes Stress from everyday things Unregulated appetite

Habit: A lot
Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: On the second to third day
Purpose: Recreational purposes only
Date Submitted: July 18, 2021

United States of America | 18 to 24 Year Old Male (Using for 3-5 years)

brain fog , trouble focusing

Brain Fog Experienced: Most of the day
Activities Disrupted: Schoolwork
Timing of Symptoms: as soon as I stopped smoking
Purpose: Recreational purposes only
Date Submitted: July 17, 2021

United States of America | 55 to 64 Year Old Male (Using for 1-2 years)

Foggy states comes in waves during the day. Dehydrated often. Insomnia.

Habit: 3-4 joints a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work productivity
Timing of Symptoms: As soon as I stopped daily use.
Purpose: Recreational purposes only
Date Submitted: July 17, 2021

United States of America | 18 to 24 Year Old Male (Using for 1-2 years)

Hot flashes, brain fog, blood sugar levels,

Habit: Once a day
Brain Fog Experienced: Less than an hour a day
Activities Disrupted: None of the above
Timing of Symptoms: Two days after I stopped using it
Purpose: Medicinal purposes only
Date Submitted: July 16, 2021

United States of America | 18 to 24 Year Old Male (Using for 6-10 years)

Brain Fog, anxiety, concentration issues, learning issues, Depression cloud but not as severe also with anxiety

Habit: less than .5 grams shared between at least 2 people each day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: 2 days after use
Purpose: Both recreational and medicinal purposes
Date Submitted: July 15, 2021

Australia | 18 to 24 Year Old Male (Using for 3-5 years)

Mental fog, unenthusiastic attitude.

Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: 1 week after quitting cannabis.
Purpose: Recreational purposes only
Date Submitted: July 15, 2021

United States of America | 35 to 44 Year Old Male (Using for 3-5 years)

Brain, disoriented, tiredness

Habit: Quarter ounce a day
Brain Fog Experienced: Less than an hour a day
Activities Disrupted: Work motivation
Timing of Symptoms: 2days ago
Purpose: Recreational purposes only
Date Submitted: July 14, 2021

Canada | 35 to 44 Year Old Male (Using for 11+ years)

Difficulty with concentrating, articulating what I want to say, organizing my thoughts. I have a hard time remembering things. My sleep is disrupted I.e nightmares.

Habit: .2 gram a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: 2nd and 3rd day after I quit.
Purpose: Both recreational and medicinal purposes
Date Submitted: July 14, 2021

United States of America | 18 to 24 Year Old Male (Using for 7-12 months)

Irritability. Trouble focusing. Heavy brain fog. Depression

Habit: A single bowl per day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: Tough to say. I’ve been smoking habitually nearly a year now, but the past half year or so I’ve had brain fog and focus problems. Depression has gotten rather serious this past month. Now that I’ve quit the brain fog is very noticable. 3 days without currently
Purpose: Recreational purposes only
Date Submitted: July 13, 2021

United States of America | 18 to 24 Year Old Female (Using for 3-5 years)

Feels like i’m in a dream – memory loss – can’t concentrate – feeling in a daze – brains foggy – can’t see clearly – nothing feels real

Habit: i don’t know. a lot.
Brain Fog Experienced: All day
Activities Disrupted: Social activities
Timing of Symptoms: – a week ago – after i stopped smoking weed
Purpose: Recreational purposes only
Date Submitted: July 13, 2021

United States of America | 35 to 44 Year Old Male (Using for 6-10 years)

Brain fog which is causing anxiety/panic attack

Habit: A joint or two, twice a week
Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: 2 weeks after I stopped heavy use of marijuana. I’m now on my third week of not smoking.
Purpose: Recreational purposes only
Date Submitted: July 13, 2021

United States of America | 18 to 24 Year Old Male (Using for 1-2 years)

Harder to reach the same level of logical reasoning that I am normally able to obtain.

Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: After one 5mg THC edible, the next entire day and lightly the day after, I had this “brain fog.”
Purpose: Both recreational and medicinal purposes
Date Submitted: July 12, 2021

United Kingdom of Great Britain and Northern Ireland | 25 to 34 Year Old Female (Using for 3-5 years)

Brain fog, Dissociating, head Numbness

Habit: 15 joints a day
Brain Fog Experienced: All day
Activities Disrupted: Social activities
Timing of Symptoms: 03/21
Purpose: Both recreational and medicinal purposes
Date Submitted: July 10, 2021

United States of America | 35 to 44 Year Old Male (Using for 0-6 months)

slow memory recall. faulty short term memory. reduced motor skill. stomach discomfort.

Habit: 300 mg a day
Brain Fog Experienced: All day
Activities Disrupted: Social activities
Timing of Symptoms: started the day after my last sesh and it’s been 5 days so far
Purpose: Both recreational and medicinal purposes
Date Submitted: July 10, 2021

United States of America | 25 to 34 Year Old Male (Using for 7-12 months)

Brain fog, no appetite

Habit: Around 10-15 “hits” per day
Brain Fog Experienced: A few hours each day
Activities Disrupted: None of the above
Timing of Symptoms: day after quitting
Purpose: Recreational purposes only
Date Submitted: July 9, 2021

Canada | 25 to 34 Year Old Female (Using for 6-10 years)

Migraines during times i would normally smoke, blurry vision, brain fog, low energy

Habit: 1g a day
Brain Fog Experienced: Most of the day
Activities Disrupted: None of the above
Timing of Symptoms: 1 day after
Purpose: Recreational purposes only
Date Submitted: July 9, 2021

United States of America | 18 to 24 Year Old Male (Using for 3-5 years)

mental fog, issues with short term memory, depressive episodes

Habit: 1-2 grams a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Social activities
Timing of Symptoms: 1-2 weeks after smoking
Purpose: Both recreational and medicinal purposes
Date Submitted: July 8, 2021

New Zealand | 18 to 24 Year Old Male (Using for 3-5 years)

Intense mood swings, losing weight, headaches, stomach cramping, lack of sleep, irrational thinking, bad communication, stress and anxiety

Habit: It was anywhere from 1-3 grams per day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: 2-3 days after stopping
Purpose: Both recreational and medicinal purposes
Date Submitted: July 8, 2021

United States of America | 25 to 34 Year Old Male (Using for 7-12 months)

decreased short term memory decreased ability to express myself verbally short attention span decreased appetite increased depression

Habit: 25 to 0.5 grams a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Social activities
Timing of Symptoms: The day after I stopped
Purpose: Recreational purposes only
Date Submitted: July 7, 2021

United States of America | 18 to 24 Year Old Male (Using for 0-6 months)

Detached feeling, memory loss, more emotional, slower thoughts

Habit: A bowl daily
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: Day after stopping
Purpose: Both recreational and medicinal purposes
Date Submitted: July 7, 2021

South Africa | 18 to 24 Year Old Male (Using for 3-5 years)

Can’t think straight, poor concentration and short term memory lose

Habit: 3 times a day sometimes more
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: About 3 or 4 days after I stopped, was a regular user for about 4 years
Purpose: Recreational purposes only
Date Submitted: July 7, 2021

United States of America | 35 to 44 Year Old Male (Using for 1-2 years)

Losing Train of Thought

Habit: A lot
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: Within 24 hours after stopping cannabis use.
Purpose: Medicinal purposes only
Date Submitted: July 7, 2021

United States of America | 18 to 24 Year Old Female (Using for 1-2 years)

I feel very slow and my brain feels foggy

Habit: a lot
Brain Fog Experienced: Most of the day
Activities Disrupted: None of the above
Timing of Symptoms: after I stopped smoking(I used to smoke everyday)
Purpose: Both recreational and medicinal purposes
Date Submitted: July 6, 2021

United States of America | 18 to 24 Year Old Female (Using for 1-2 years)

Brain zaps, loss of appetite, vomit, chills, cold sweat, irritability, anxiety

Habit: 250mg cart
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work productivity
Timing of Symptoms: About 24 hours after last use
Purpose: Recreational purposes only
Date Submitted: July 5, 2021

United Kingdom of Great Britain and Northern Ireland | 18 to 24 Year Old Female (Using for 3-5 years)

Brain fog, struggling to concentrate, feel almost floaty and not connected to my body

Habit: Not much, small blunt each day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: About a week after not smoking
Purpose: Recreational purposes only
Date Submitted: July 5, 2021

Australia | 18 to 24 Year Old Male (Using for 1-2 years)

Brainfog

Habit: 1 gram a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: Since starting smoking
Purpose: Both recreational and medicinal purposes
Date Submitted: July 5, 2021

Ireland | 18 to 24 Year Old Male (Using for 3-5 years)

Vision is blurry and sleep is very hard

Habit: 1 gram a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work motivation
Timing of Symptoms: Couple days after stopping
Purpose: Recreational purposes only
Date Submitted: July 4, 2021

Canada | 18 to 24 Year Old Male (Using for 1-2 years)

I have a hard time thinking and keeping my mind on track forgetting things constantly and short temper

Brain Fog Experienced: A few hours each day
Activities Disrupted: Work productivity
Timing of Symptoms: Normally the day after use but it has persisted for a week now
Purpose:
Date Submitted: July 4, 2021

United States of America | 45 to 54 Year Old Male (Using for 11+ years)

Lethargy, brain fog, headaches, occasional urge to smoke again

Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: Day 2
Purpose: Both recreational and medicinal purposes
Date Submitted: July 4, 2021

United States of America | 18 to 24 Year Old Male (Using for 1-2 years)

talking to people is difficult. thinking of things to say or think is hard

Habit: 15 – 20 Cart hits a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work motivation
Timing of Symptoms: about a week after quitting
Purpose: Both recreational and medicinal purposes
Date Submitted: July 4, 2021

United States of America | 35 to 44 Year Old Male (Using for 1-2 years)

Brain fog

Habit: 2 puffs a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: 2 day ago
Purpose: Recreational purposes only
Date Submitted: July 4, 2021

United States of America | 25 to 34 Year Old Male (Using for 11+ years)

Trouble concentrating, diminished cognitive function. Diminished social interactions.

Habit: 1 gram a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Social activities
Timing of Symptoms: 2-3 days after stopping
Purpose: Both recreational and medicinal purposes
Date Submitted: July 3, 2021

United States of America | 18 to 24 Year Old Male (Using for 1-2 years)

headache, stomach pain, lack of appetite, restlessness, mental fog (difficulty concentrating)

Habit: 2 grams a day
Brain Fog Experienced: Most of the day
Activities Disrupted: None of the above
Timing of Symptoms: 12 hours after my last bowl
Purpose: Recreational purposes only
Date Submitted: July 1, 2021

United States of America | 18 to 24 Year Old Female (Using for 0-6 months)

i feel like my brain and body arent functioning together im throwing up i feel like i’m in a daze nothing feels real

Habit: smoke it like it’s nicotine
Brain Fog Experienced: All day
Activities Disrupted: Work productivity
Timing of Symptoms: yesterday
Purpose: Recreational purposes only
Date Submitted: July 1, 2021

United States of America | 25 to 34 Year Old Male (Using for 1-2 years)

Higher anxiety than when I first began (daily high frequent user during COVID-19), more intense brain fog than when I first began, mood swings, depressive episodes, crying because of these episodes, frequent restless leg syndrome.

Habit: couple of puffs every couple of hours
Brain Fog Experienced: All day
Activities Disrupted: Social activities
Timing of Symptoms: 3 days – week after quitting. Unsure of timeline.
Purpose: Both recreational and medicinal purposes
Date Submitted: July 1, 2021

United Kingdom of Great Britain and Northern Ireland | 25 to 34 Year Old Female (Using for 11+ years)

brain fog, mood swings, depression, anxiety, vivid dreams, cravings at the beginning but subsiding. OCD thoughts

Habit: it depends on my mental state, I quit for 4 months last year then for 4 months again. When i have depression from blackout drinking trauma i smoke alot to cope. sometimes I can only smoke after 4 pm, but struggle to control usage, and find having one a night difficult as i crave more, In UK it is mixed with tobacco so this may complicate the addiction for users here
Brain Fog Experienced: Most of the day
Activities Disrupted: Schoolwork
Timing of Symptoms: within a few days to a week
Purpose: Both recreational and medicinal purposes
Date Submitted: July 1, 2021

Israel | 25 to 34 Year Old Male (Using for 3-5 years)

Constant faint anger, restless, darker thoughts and harsher view of reality.

Habit: 3-5 joints a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Social activities
Timing of Symptoms: 5-7 days after quiting
Purpose: Both recreational and medicinal purposes
Date Submitted: June 30, 2021

United Kingdom of Great Britain and Northern Ireland | 25 to 34 Year Old Male (Using for 3-5 years)

Night sweats, brain fog, trouble sleeping, extremely vivid and unusual dreams

Habit: 4-6 rolled with tobacco cigarettes per day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work productivity
Timing of Symptoms: 3-4 days post completely stopping smoking marijuana after roughly 2 years of daily use
Purpose: Both recreational and medicinal purposes
Date Submitted: June 30, 2021

United States of America | 75 or older Year Old Male (Using for 11+ years)

Dizziness, blurred vision, short attention span.

Habit: Varies
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: During & after stopping marijuana use
Purpose: Recreational purposes only
Date Submitted: June 29, 2021

Ethiopia | 18 to 24 Year Old Male (Using for 0-6 months)

I will be talking and doing normal social activity with friends and family and in the middle of it i seem to think about stuff unrelated which makes me lose attention on whats going on around me And i even do weird stuff that is just abnormal but funny And sometimes i forgot what am doing or what am i were about to do .. and have to think about it to remember what it is I have been using weed for about 2 years which i stopped for about 6 month and got back in for 2 month of using and now am having this experiences .. Hope this helps .. Thanks for caring

Habit: .5 gram a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Social activities
Timing of Symptoms: I have been using weed for about 2 years which i stopped for about 6 month and got back in for 2 month of using and now am having this experiences ..
Purpose: Both recreational and medicinal purposes
Date Submitted: June 29, 2021

Ireland | 25 to 34 Year Old Female (Using for 6-10 years)

Brain fog, lack of concentration, irritation, anger, problems with sleeping, headaches

Habit: 4/5 joints a day – on a bad day about 7
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: 2 days after quitting smoking
Purpose: Both recreational and medicinal purposes
Date Submitted: June 29, 2021

India | 25 to 34 Year Old Male (Using for 3-5 years)

Feeling brain fog, restless, mentally disturbed

Habit: 3 to 5 ocb
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: 4 years back
Purpose: Recreational purposes only
Date Submitted: June 28, 2021

United States of America | 25 to 34 Year Old Male (Using for 11+ years)

Anxiety, depression, fatigue

Habit: 7 hits a day
Brain Fog Experienced: A few hours each day
Activities Disrupted: Work productivity
Timing of Symptoms: Day 3
Purpose: Both recreational and medicinal purposes
Date Submitted: June 27, 2021

United States of America | 45 to 54 Year Old Male (Using for 11+ years)

Irritability Brain heavy, fog Confusion Anxiety Head tightness

Habit: 5 grams a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Social activities
Timing of Symptoms: 1 day after and strongly appear 3 days after
Purpose: Both recreational and medicinal purposes
Date Submitted: June 26, 2021

India | 25 to 34 Year Old Male (Using for 0-6 months)

Brain fogging, fatigueness

Habit: 1 gram a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Work productivity
Timing of Symptoms: The day after quitting weed
Purpose: Recreational purposes only
Date Submitted: June 25, 2021

United States of America | 18 to 24 Year Old Female (Using for 6-10 years)

Loss of appetite, nausea, muscle weakness, insomnia, brain fog, tinnitus

Habit: 1 gram a day
Brain Fog Experienced: Most of the day
Activities Disrupted: Social activities
Timing of Symptoms: Starting at 8-12 hours after cessation of smoking marijuana, lasting for over a week
Purpose: Both recreational and medicinal purposes
Date Submitted: June 25, 2021

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