I have taken the Oxygen Advantage Instructor course and can’t say enough good things about it! I have been taping my mouth for my strength training sessions as well as my Tactical training. I have been playing with the knowledge Patrick McKeown has so willingly shared and began experimenting with my Team. The conditioning results have been exceptional but I expected that based on what I learned in the course. Using OA for the reduction of stress in SWAT and other High Stress Law Enforcement activities is what I am most interested in now and I have a lot to work with thanks again to Patrick McKeown. For those out there who are considering taking the course do yourself a favor get off the fence and do it. Money well invested in your health!