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Breath Summary & Review: The Lost Art That Changes Everything
James Nestor reveals how modern humans lost the ability to breathe well — and how nasal breathing, slow breathing, and mouth taping…
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James Nestor
"The journalist who plugged his own nose for 10 days to prove that how we breathe shapes our health."
James Nestor is an American journalist and author whose book "Breath: The New Science of a Lost Art" investigates how the modern loss of proper breathing habits has quietly damaged human health. A longtime science journalist who has written for Outside, Scientific American, and The New York Times, Nestor spent years researching pulmonology, ancient breathing practices, and the anatomical changes caused by industrialized diets and lifestyles, including a widely discussed self-experiment in which he had his nostrils plugged for 10 days to test the effects of mouth breathing. "Breath" became a bestseller for translating dense respiratory science into a compelling case that how you breathe may matter as much as what you eat.
1 book featured·Former science journalist for Scientific American and The New York Times
Books by James Nestor
Our in-depth summaries and reviews of his work
Key Ideas & Recurring Themes
Slow, nasal breathing is the ideal
Nestor's research points to roughly 5.5 breaths per minute, inhaled through the nose, as the pattern most associated with cardiovascular and nervous-system health.
Lung capacity predicts longevity
Across the studies Nestor reviews, lung capacity emerged as a stronger predictor of lifespan than genetics, diet, or exercise habits.
Ancient practices anticipated modern science
Nestor connects breathing techniques found in prayer, chanting, and yoga across cultures to measurable physiological benefits now being confirmed by pulmonology research.
Notable Quotes
"The perfect breath is this: Breathe in for about 5.5 seconds, then exhale for 5.5 seconds. That's 5.5 breaths a minute for a total of about 5.5 liters of air."— Breath
"The greatest indicator of life span wasn't genetics, diet, or the amount of daily exercise, as many had suspected. It was lung capacity."— Breath
"A last word on slow breathing. It goes by another name: prayer."— Breath
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Book Author James Nestor
Breath Summary & Review: The Lost Art That Changes Everything
James Nestor reveals how modern humans lost the ability to breathe well — and how nasal breathing, slow breathing, and mouth taping can transform your health, sleep, and performance.