Inhale, exhale and again. Have we forgotten the most natural thing in the world? In recent years at least, people seem to be more and more obsessed with healthy lifestyles. We do more sports, we are interested in proper eating habits, we study sleep, we toughen up, we digitally record every bodily function. However, there is one process that we only pay attention to when we are in trouble: breathing. Journalist James Nestor had a similar experience. His long-term health problems were solved only thanks to breathing exercises, which he initially distrusted. After learning to breathe again, Nestor sets off on a journey to find the answer to the question: Is humanity forgetting the seemingly simplest thing in the world? The author searches not only in lung laboratories, but also in choirs, in ancient cemeteries, Soviet research bases or in the streets of Săo Paula. He compares scientific findings from physiology, biochemistry or psychology with yogic and other traditions and shows that breathing is the absolute basis of our being. Just maybe a little different than you might expect.