Bob interviews Patrick McKeown on How Breathing Can Affect Your Anxiety. Patrick McKeown is a international best-selling author of The Oxygen Advantage and creator and master instructor of the Oxygen Advantage® technique, Patrick McKeown is widely regarded as one of the world’s leading breathing re-education experts. Over the past two decades, Patrick has trained thousands of people around the world to safely challenge their bodies and produce positive changes through breathing re-education. He teaches a new way to breathe, combined with specific exercises designed to improve blood chemistry. The result is an increase of oxygen flow to all the body’s systems, meaning greater endurance, strength and power.