The Breathing Cure: Develop New Habits for a Healthier, Happier, and Longer LifeNOSES ARE FOR BREATHING, MOUTHS ARE FOR EATING "Many people believe that taking a deep breath increases body oxygenation. The opposite is the case." Patrick McKeown, bestselling author of The Oxygen Advantage Imagine a breathing technique that can increase oxygen uptake and delivery to the cells, improve blood circulation, and unblock the nose. Perhaps it can help open the airways of the lungs, enhance blood flow and oxygen delivery to the brain,