Andrew Huberman· PhD
So we don't really breathe to get oxygen. That's a by-product of inhaling to eliminate carbon dioxide.
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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.
So we don't really breathe to get oxygen. That's a by-product of inhaling to eliminate carbon dioxide.
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So the impulse to breathe, if you're under water, or if you hold your breath is triggered by these neurons and the triggering of those neurons comes from elevated carbon dioxide in the bloodstream.