David Goggins' childhood was a nightmare - poverty, prejudice, and physical abuse haunted him even in his dreams. But through self-discipline, mental strength, and hard work, he transformed himself from a depressed, overweight teenager with no prospects into an icon of the U.S. Army and one of the world's top endurance athletes. 

He is the only person to have completed elite training as a Navy SEAL, U.S. Army Ranger, and Air Force Tactical Air Controller, and he also set numerous endurance records. In "Can’t Hurt Me," he tells his truly astonishing life story and shows that most of us don't even tap into half of our potential. Goggins calls this the 40 percent rule. His outstanding example, however, illustrates how anyone can change that and overcome pain thresholds and fears.