Andrew Huberman· PhD
what they found was that it was more important to have a regular amount of sleep each night as opposed to the total duration.
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The evidence is convergent. Multiple independent sources reach the same conclusion, the underlying mechanism is well-characterized, and even the field's most cautious voices treat it as worth doing.
what they found was that it was more important to have a regular amount of sleep each night as opposed to the total duration.
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Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
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I personally find it fascinating that consistency of sleep, meaning getting six hours every night is better than getting ten one night, eight the next, five the next, four the next.
I personally find it fascinating that consistency of sleep, meaning getting six hours every night is better than getting 10 one night, eight the next, five the next, four the next.
Turns out that for sake of learning new information, limiting the variation in the amount of your sleep is at least as important and perhaps more important than just getting more sleep overall.
10 minutes of bright outdoor light within the first hour of waking anchors the circadian phase and improves sleep onset that night.
Morning sunlight exposure shifts the cortisol awakening response forward, improving daytime alertness.
Long-term morning sunlight reduces age-related macular degeneration risk.
Sleep regularity predicts all-cause mortality more strongly than sleep duration.
Tracking deep sleep on a wearable accurately reflects EEG-measured slow-wave sleep.
Caffeine has a half-life long enough that consumption after 2pm measurably degrades deep sleep in slow metabolizers.