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.
people that had slept you know was poor sleep or interrupted sleep something of that nature I can't remember the all the exact things that were measured with respect to sleep but um people that you know didn't sleep as long or had poor sleep Whatever by whatever measurements had a higher all-cause mortality which is not that surprising but only in people that weren't physically active
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.
The groups with the two highest levels of physical activity (15-29.9 and 30 or more MET-h) and short sleep had an ACM risk that was indistinguishable from the reference group.
Groups with the two lowest levels of physical activity (<7.5 and 7.5-14.9 MET-h) and less <6 hours of sleep per week had a statistically significantly greater ACM risk (27% and 11%, respectively) vs. the reference group (30 or more MET-h and 6-8 hours of sleep).
Further, people who slept habitually less than 6 hours a night had a decreased life expectancy compared to those who slept between 6-8 hours a night - but only in people who were NOT physically active.
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.