Delay caffeine 90–120 minutes
Morning
Postponing the first caffeine of the day for roughly 90 to 120 minutes after waking. Many do this hoping to reduce an afternoon energy dip; intervals vary.
Quick facts
- 1The delay-caffeine practice waits 90 to 120 minutes after waking before the first cup.
- 2The rationale involves adenosine clearance and the natural morning cortisol peak; direct trial evidence is limited.
- 3Andrew Huberman's advocacy made the 90-minute delay one of the most debated small habits in routine culture.
Why people do it
Steadier mornings: Adherents report fewer mid-morning crashes, the effect the practice is named for.
Pairs with morning light: The delay window is usually filled with the sunlight walk, stacking two habits.
Tolerance hygiene: Not caffeinating the moment adenosine is already low may keep the dose feeling stronger.
Good to know
Evidence is thin: The mechanism is plausible but barely tested directly; treat it as an experiment, not a rule.
Skip it on terrible nights: After real sleep deprivation, practitioners take the coffee when needed.
Common questions
Why 90 minutes?+
It approximates the natural early-morning cortisol rise; the number is a heuristic, not a finding.
Does tea count?+
Any caffeine counts; the practice is about timing the first dose, whatever its form.
Takeaway
A low-cost experiment: fill the first 90 minutes with water and daylight, then earn the coffee. Keep it if your mid-mornings improve; drop it if not.
Notes from the community
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For information only.
These habits are compiled from public statements and are not medical advice or endorsed by Andrew Huberman. Consult a qualified professional before changing your routine, supplements, or therapies.