Andrew Huberman· PhD
Physiological sighs (double nasal inhales followed by exhales) re-inflate the lungs, offload C02 and reduce stress.
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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.
Physiological sighs (double nasal inhales followed by exhales) re-inflate the lungs, offload C02 and reduce stress.
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so this would be double inhale through the nose so big inhale through the nose followed by it to lungs empty exhale that second inhale after the first big lung inhale through the nose is really important because it makes sure that all the collapsed avoli the lungs totally snap open and then the exhale you offload a lot of carbon dioxide