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.
So you're going to emphasize sleep more during this part of the year also because the sun is very low. It's harder to sleep for a lot of folks longer when the sun is out for longer, especially if you don't have a perfect blackout curtain.
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.
in the in the sort of winter months in those northern latitudes when it's darker earlier and the sun comes up a lot later that the period of sleep um should actually in my opinion be extended you know you might be having 10 hours sleep a night you in the summer um you know that the sun might not set like you said until 10 p.m at night and then might come up at five six in the morning at which point seven or eight hours sleep is is going to be enough
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.