You’ve been breathing wrong your whole life. That’s the message journalist and outdoor athlete James Nestor delivers in his new bestseller Breath, which explains how the human species has lost the ability to breathe properly and why this is so bad for our health in all kinds of ways. But his reporting also shows that with minor adjustments in how we inhale and exhale, we can dramatically improve on everything from the quality of our sleep to our athletic performance to our posture. Nestor, whose interest in breathing began when he wrote a feature for Outside on the sport of freediving, talks with editor Christopher Keyes about his years-long investigation into the history and science of human breathing, and his own journey to becoming a better breather.

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