90-Day Brain Reset

Cannabis Recovery Timeline

Your brain needs approximately 90 days to fully recalibrate after regular cannabis use. Below are the key milestones — each with brain recovery data, active symptoms, and what to expect.

Day 11% of reset

Day 1 Without Weed: What to Expect

The first 24 hours of your brain reset

CB1
2%
DA
3%
Day 22% of reset

Day 2 Without Weed: Symptoms Begin

Withdrawal symptoms start emerging

CB1
4%
DA
5%
Day 33% of reset

Day 3 Without Weed: The Hardest Day Begins

Peak withdrawal intensity approaches

CB1
6%
DA
7%
Day 56% of reset

Day 5 Without Weed: Past the Worst

Physical symptoms start plateauing

CB1
10%
DA
10%
Day 78% of reset

1 Week Without Weed: Your First Milestone

The acute phase is ending

CB1
15%
DA
15%
Day 1011% of reset

Day 10 Without Weed: Physical Symptoms Fade

Your body is adjusting

CB1
20%
DA
20%
Day 1416% of reset

2 Weeks Without Weed: Clarity Returns

Cognitive function begins recovering

CB1
30%
DA
30%
Day 2123% of reset

3 Weeks Without Weed: Sleep Normalizes

Your sleep cycle is rebuilding

CB1
40%
DA
35%
Day 3033% of reset

1 Month Without Weed: A Major Milestone

CB1 receptors approaching normal density

CB1
55%
DA
40%
Day 4550% of reset

Day 45 Without Weed: Exiting the Valley

Emotional recovery begins in earnest

CB1
65%
DA
55%
Day 6067% of reset

2 Months Without Weed: Dopamine Recovers

Your reward system is healing

CB1
80%
DA
70%
Day 90100% of reset

90 Days Without Weed: The Brain Reset

Full neurological recovery

CB1
95%
DA
90%
Day 180

6 Months Without Weed: The New Normal

Sobriety becomes your default

CB1
98%
DA
95%
Day 365

1 Year Without Weed: A Full Year Sober

The anniversary milestone

CB1
100%
DA
100%

Science-backed recovery

Track your recovery with Klar

47 symptom tracking, brain recovery visualization, craving surfing tools, and the 90-day timeline—all in one app.

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Klar app showing brain recovery progress

Medical Disclaimer: Timeline information is based on published research and aggregate recovery data. Individual experiences vary significantly based on usage history, frequency, and other factors. This content does not constitute medical advice. If in crisis, call 988 or text HOME to 741741.