You are using an old version of Internet Explorer, which is not supported any more by Microsoft. To fully take advantage of our service, we recommend to user a modern browser, such as Google Chrome.
Dr Belisa Vranich is a clinical psychologist and renowned breath coach. Bas Rutten is a legendary MMA champion and the founder of the O2 Trainer. We discuss the importance of respiratory strength to combat disease, breath and the nervous system, the impact of protective equipment on ventilation, their latest program "Breathing for Warriors: MMA and so much more.