A rising star among New Age motivational speakers, he was brought down by a disaster during one of his retreats in Arizona, where three people died in a sweat lodge.
A large number of soldiers return as amputees, and many suffer from post-traumatic stress disorder. Once home, they face stigma and a grueling course of rehabilitation.
A new study is βa bit of a counterweight to the endless hyperbole about how incredibly complex and powerful the human brain is,β one researcher said.