Andrew Huberman· PhD
Bright light, caffeine, exercise, deliberate cold & stress of any kind increase cortisol.
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The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
Bright light, caffeine, exercise, deliberate cold & stress of any kind increase cortisol.
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.
you want to take an extra effort to spike your cortisol levels. You're going to need to try and boost your cortisol levels even higher through bright light, hydration, maybe not exercising again if you already train the night before, maybe cold shower.