Hollywood Stuntman Bobby Williams describes his experiences with the Stratosphere ATC hypobaric machine he invented to boost health and longevity. In Episode 53 of the Uncommon Living podcast, William's explains to Thomas Seager, PhD how hypobaric (i.e., high altitude simulation) training has improved lung capacity for him and his wife, actress Mariel Hemingway. Their conversations compares hypobaric to hyperbaric chamber and examines the physiology behind both hyperbaric oxygen therapy and induced hypoxia. Finally, the two discuss plans to collaborate at the Cold Plunge Research Institute 3rd Annual Symposium, and for equipping a new hot springs spa in Ketchum Idaho with Morozko ice baths.