No food close to bed
Evening
Finishing the last meal well before bedtime. Commonly practiced with the aim of supporting digestion and sleep quality.
Quick facts
- 1Digestion elevates core temperature and heart rate, both things sleep prefers low, which is why late meals show up in sleep-tracker data.
- 2Practitioners commonly stop eating 2–4 hours before bed; Bryan Johnson's early final meal made the aggressive version famous.
- 3Late eating is studied in circadian biology as a clock signal: food timing tells peripheral organs what time it is, independent of light.
Why people do it
Sleep quality: Digestion raises core temperature and heart rate, both things sleep wants low; late meals reliably degrade tracked sleep for many people.
Circadian eating: Meal timing is a clock signal for metabolic organs, and late eating appears to be processed differently in circadian research.
Visible in the data: Wearable users often see lower overnight resting heart rate on early-dinner days, which keeps the habit honest.
Good to know
Adjust backward from bedtime: The kitchen-closed time moves with your sleep schedule, not with the clock on the wall.
Social dinners happen: Practitioners treat late meals as exceptions to absorb, not failures.
Common questions
How many hours before bed?+
Two to four hours is the common practice range; Bryan Johnson's famously early final meal is the aggressive end.
Does a light snack count?+
Smaller and earlier is the direction that matters; a heavy late dinner is what shows up worst in sleep data.
Takeaway
Finish eating a few hours before sleep and the night gets measurably quieter: lower heart rate, better deep sleep. Set a kitchen-closed time and let your wearable convince you.
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 Gary Brecka. Consult a qualified professional before changing your routine, supplements, or therapies.