You do it 25,000 times a day, but you're probably doing it wrong. Breathing is the most fundamental biological function, yet modern humans have forgotten how to do it correctly. "The Lost Art of Breath" (inspired by James Nestor) reveals that chronic mouth-breathing is a root cause of sleep apnea, crooked teeth, anxiety, and poor athletic performance. Discover the forgotten wisdom of ancient pranayama and the cutting-edge science of pulmonology. The secret is simple: Shut your mouth. Nasal breathing filters the air, boosts oxygen uptake by 20%, and releases nitric oxide, a molecule essential for circulation. Learn techniques to hack your nervous system. Slow breathing to calm anxiety (parasympathetic activation). Fast, intense breathing (Tummo/Wim Hof) to generate heat and energy. Chewing hard foods to expand your airways. Breath is the remote control for your brain and body. Take a deep breath—through your nose—and transform your health.