Andrew Huberman· PhD
If looking to “stay in the zone” during Zone2 cardio (which we should all be doing for minimum of 150-200min of per week), try to use the maximum effort that still allows you to remain in pure-nasal-breathing.
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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.
If looking to “stay in the zone” during Zone2 cardio (which we should all be doing for minimum of 150-200min of per week), try to use the maximum effort that still allows you to remain in pure-nasal-breathing.
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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.
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