Andrew Huberman· PhD
Acetylcholine acts as a spotlight but epinephrin for alertness. acetylcholine spotlighting these inputs.
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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.
Acetylcholine acts as a spotlight but epinephrin for alertness. acetylcholine spotlighting these inputs.
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.
But it seems like acetylcholine is the thing that really creates this this ability for attentional spotlighting that being able to anchor one's thoughts and actions towards a specific set of sensory combinations.