The countdown continues! This is the 9th most popular video of 2018 — and great fuel for starting a new year.
What are you capable of? David Goggins' amazing and grueling feat of persistence shows how tough the human mind can be.
David Goggins is the only member of the U.S. Armed Forces to complete SEAL training, Air Force tactical air controller training, and the U.S. Army Ranger School, where he graduated as 'Enlisted Honor Man'. Seeking an even greater challenge, Goggins set about conquering the hardest sporting events known to man. Today he is considered to be one of the greatest endurance athletes in the world.