Bryan Johnson· Author
It’s worth it because nothing has the power to make life better and more rich than sleep.
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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.
It’s worth it because nothing has the power to make life better and more rich than sleep.
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.
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1. High quality sleep as your #1 priority
Um I do feel like sleep in terms of priority of what you have to do is the most important. Maybe even before eating.
there's uh no single thing I do for my health is more important than sleep if the number I mean if if sleep is Right life is right and when it's off Everything feels worse
sleep is is from the most important thing out of all parameters and what in what makes common sense but also in the medical literature
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.