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.
you will wake up just a few minutes before your alarm it's stunning how many people will say I had this big flight the next day and you almost know I'm going to wake up 2 minutes before my alarm goes off why because your brain has stayed in this shallow state of anticipatory anxiety and you don't get as much deep 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.
Would love a "what would change this verdict" RSS feed. Sign me up if it exists.
when you do have that low level anxiety the depth of your deep sleep is not as deep you don't get the good
when you have that low level anxiety the depth of your deep sleep is not as deep you don't get the good
what those technologies do is cause what's called anticipatory anxiety
and the greater the anxiety that there is the next morning the greater the duction in deep sleep that you have night before
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.