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.
during the daytime, you want to get as much sunlight and other types of bright light in your eyes as safely possible. And then you want to avoid light in the middle of the night. It has detrimental dopamine lowering effects can cause depression, cortisol increases, et cetera.
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.
please get as much light exposure from sunlight early in the day as possible because it sets in motion a huge number of things that are beneficial for your mental health and physical health, including dopamine production, timing melatonin production correctly, reducing cortisol peaks late in the day, et cetera, et cetera.
And what you're trying to do is provide them anchors. You're trying to provide them consistent, powerful anchors so that your cortisol, your melatonin, and then everything that cascades down from that, like your metabolism and your ability to learn and your sense of alertness, your dopamine, your serotonin, all that stuff is timed regularly.
Upon waking, I expose my eyes to 10,000 lux light because morning light anchors your circadian rhythm and boosts dopamine, linked to better mood, focus, and metabolic function.
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.