Jonathon Sullivan: Training for the extreme sport of aging

Dr. Jonathon Sullivan has spent much of his professional life treating patients on the brink of death. Working at a Level I trauma center he became familiar with medical conditions that claim lives far too early. But emergency medicine also helped the former US marine develop a deeper understanding of the human body and the reasons people get sick as they grow older. Now, as the owner, head coach and clinical director of Greysteel Strength and Conditioning, Dr. Sullivan focusses on extendin...