Breath: The New Science of a Lost Art is a 2020 popular science book by science journalist James Nestor. The book provides a historical, scientific and personal examination of breathing, with a specific interest in contrasting the differences between mouth breathing and nasal breathing. The book became an international bestseller, selling over two million copies worldwide. Summary. The book examines the history, science, and culture of breathing and its impacts on human health.
https://en.wikipedia.org/wiki/Breath:_The_New_Science_of_a_Lost_Art