The Oxygen Advantage by Greg McKeown

The Simple, Scientifically Proven Breathing Techniques for a Healthier, Slimmer, Faster, and Fitter You

A practical guide that teaches a breathing-based program—centered on nasal, slow, and reduced breathing and improved carbon-dioxide tolerance—to enhance oxygen efficiency, boost athletic performance, improve sleep and energy, and reduce stress; it explains common dysfunctional breathing patterns, offers simple tests (like the BOLT score) and progressive exercises (diaphragmatic breathing, breath-holds, nasal-only practice) to retrain breathing for better health and endurance.