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.
That “get daylight in your eyes in the first 30-60min of your day (or once the sun is up if you wake very early) works the first time & every time to increase energy all day & improve sleep because 1) amplifies your morning cortisol & catecholamine levels 2) times your melatonin.
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.
What you want to do is get sunlight in your eyes as close to waking as possible.
where is there 50 or 100 or 1,000 papers that, for instance, support morning light viewing in order to optimize melatonin secretion in the day, cortisol secretion early in the day, mood, metabolism, et cetera?
when you view bright bright sunlight in the morning or just sunlight that's illuminating your environment as you said you don't even have to see the sun itself that there's a 50% increase in the amplitude of the morning cortisol spike which is a good thing right that's when you want it because it's inversely the amplitude of the morning Cor ol spike is inversely related to the amplitude of the evening cortisol Spike
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.