David Goggins has served our country and developed innovations in athletics. He is an ultramarathon runner, cyclist, triathlete, author and motivational speaker. He served as a Navy SEAL and in the Air Force; he even served in the military during the Iraq War. Interesting fact: he used to have to world record for the number of pull-ups that can be done in 24 hours.
He released a memoir, Can’t Hurt Me, in 2018.
After going through numerous training secessions and a diagnosis of sickle cell, he pursued his endeavors long enough to join the United States Air Force Tactical Air Control Party (TACP).