James Nestor

American author and journalist — author of Breath: The New Science of a Lost Art — who synthesized research on breathing mechanics and ancient breathing practices in a book that created a mass interest in nasal breathing and breathwork.

Creates the modern breathing optimization argument — Breath's central claim (that modern humans have forgotten how to breathe correctly, that mouth breathing causes structural facial changes and health problems, and that ancient breathing practices have a rigorous scientific basis) synthesized research from multiple fields into a coherent popular science argument.