In The Oxygen Advantage, Patrick McKeown, shares his scientifically validated techniques to help you breathe more efficiently and lose weight in the process. He has taught 5000 individuals and now shares with the reader the fundamental relationship between oxygen and the body. First, there is a Body Oxygen Level Test (BOLT) to determine how efficiently your body uses oxygen. Then shows you how to increase your BOLT score by using light breathing exercises. This book is designed to help people with every level of fitness to achieve better health results.