Peter Attia· MD
as a person ages they're tend to sleep a little bit lighter and their sleep architecture tends to change a little bit
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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.
as a person ages they're tend to sleep a little bit lighter and their sleep architecture tends to change a little bit
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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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We know that as a person ages, they're they tend to sleep a little bit lighter and their sleep architecture tends to change a little bit. We also know that other things get in the way, especially for men, which is it gets harder and harder to make it through a night without having to get up to pee.
So, we know that as a person ages, they're tend to sleep a little bit lighter and their sleep architecture tends to change a little bit.
especially for men, which is it gets harder and harder to make it through a night without having to get up to pee.
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.