"The Oxygen Debt – Reclaiming energy by breathing less not more" debunks the popular myth that "taking a deep breath" is always good for you. In fact, most anxious and stressed people are chronic over-breathers, expelling too much carbon dioxide and disrupting the chemical balance that allows oxygen to actually enter the cells (the Bohr Effect). This book explains the paradox that to get more oxygen, you often need to breathe less air. Health researcher Sarah Vance explains the science of CO2 tolerance without needing complex diagrams. She outlines the connection between rapid breathing, panic attacks, and fatigue. The book provides text-based protocols for "nasal breathing" and "air hunger" training to reset the brain's respiratory center. Readers will learn why elite athletes train to tolerate high CO2 levels and how to apply this to sedentary office life. "The Oxygen Debt" is a practical guide to fixing the most fundamental biological function, turning breath from a source of stress into a source of infinite fuel.