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Breathing Myths: We Need More Oxygen

Updated: Jan 12

At rest, we do not need more oxygen! Near sea level, the air we inhale contains 21% oxygen, whereas the air we exhale contains 15% oxygen. This Real Genius episode draws heavily on Dr. Inna Khazan's clinical experience, extensive writing, and presentations on healthy breathing. It was illustrated by Dani S@unclebelang and written by Fred Shaffer and Zachary Meehan. BioSource releases one new WEBTOON episode weekly to support science literacy. If you like this, please check out our growing collection. If you are fond of dogs, cats, and squirrels, enjoy our Cooperville series. We missed Bloom County and Calvin & Hobbes and wanted to provide a safe space of gentle humor and innocent fun.

Real Genius

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BCIA Clinical Update Series, Add Slow-Paced Contraction to Heart Rate Variability Biofeedback, January 26, 2024, 11am Pacific, Noon Mountain, 1pm Central, 2pm Eastern. Presented by Fred Shaffer PhD, BCB, BCB-HRV. Matt Bennett, Optimal HRV Co-Founder, recently interviewed me about HRV time-domain measurements. This podcast is available at or wherever you listen to your podcasts. 


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Jan 08
Rated 5 out of 5 stars.

I talk about this a lot, and it’s great to see it here. Thank you!


Rated 5 out of 5 stars.

The myth has been busted!

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