Andrew Huberman· PhD
And indeed fasting will increase alertness, but if you're so hungry or preoccupied with food that you can't focus well, then it's not gonna be good for learning. It's only going to be good for agitation.
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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.
And indeed fasting will increase alertness, but if you're so hungry or preoccupied with food that you can't focus well, then it's not gonna be good for learning. It's only going to be good for agitation.
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.
Time-restricted eating produces fat loss independent of total calories.
A 72-hour fast measurably improves autophagy markers in healthy adults.
One-meal-a-day (OMAD) eating patterns increase all-cause mortality in long-running cohort data.
Eating the largest meal before 3pm improves 24-hour glucose vs. an evening-heavy schedule, calorie-matched.