When Dr. Daniel Amen was working on the largest ever NFL study on the brains of active and retired players, one of the biggest takeaways was how the subjects' brains reacted to hyperbaric oxygen treatment. In short, they got much better. In this first episode of a series on healing with oxygen, the Amens discuss the benefits of hyperbaric oxygen therapy, and Tana shares her recent first-hand account of how it helped her recover from a surgery.