Bryan Johnson· Author
Sleep Bryan will remind other Bryan's that we have the entire day tomorrow to think about all of these wonderful thins. rn, we're in sleep mode.
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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.
Sleep Bryan will remind other Bryan's that we have the entire day tomorrow to think about all of these wonderful thins. rn, we're in sleep mode.
Every Sunday: the week’s new conflicts and verdict changes — and nothing else.
Native comments, Twitter mentions, and Reddit threads about this claim — surfaced together so the conversation isn't fragmented across platforms.
Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
Would love a "what would change this verdict" RSS feed. Sign me up if it exists.
I use this device one hour before I go to bed and then if I wake up at night I can use it again and it usually puts me back to sleep immediately
I use this device one hour before I go to bed and then if I wake up at night I can use it again and it usually puts me back to sleep immediately
if I wake up at night I can put this on and do this for 10 minutes it puts me back to sleep pretty quickly
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.