For David Goggins , childhood was a nightmare - poverty, prejudice, and physical abuse colored his days and haunted his nights.
The only man in history to complete elite training as a Navy SEAL, Army Ranger, and Air Force Tactical Air Controller, he went on.
Armed Forces icon and one of the world\'s top endurance athletes.
But through self-discipline, mental toughness, and hard work, Goggins transformed himself from a depressed, overweight young man with no future into a U.
S.
For David Goggins , childhood was a nightmare - poverty, prejudice, and physical abuse colored his days and haunted his nights