Nasal Breathing: The Endurance Science Behind Nose-Only Training and How to Build the Habit at Every Level
Breathing through the mouth during exercise is the default for most people. It feels necessary at moderate intensity, instinctive at high intensity, and the idea of restricting breathing to the nose during a training run sounds like an experiment in self-imposed oxygen deprivation. The research tells a more nuanced story. Nasal breathing during exercise activates…