Andrew Huberman· PhD
The carbon dioxide tolerance test is, its objective in that it measures your capacity to engage the so-called parasympathetic arm of your nervous system which is the calming aspect of your nervous system.
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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.
The carbon dioxide tolerance test is, its objective in that it measures your capacity to engage the so-called parasympathetic arm of your nervous system which is the calming aspect of your nervous system.
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Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
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