Athlete Runs 350 Miles While Barely Breaking a Sweat Due To Genetic Condition
2:24
Dean Karnazes on Jimmy Kimmel
3:06
Joe Rogan Has MIND BLOWN By 100 Mile Running Record
1:30
Ultra-marathoner in record bid for most mileage on treadmill in 24 hrs
Dean Karnazes, is an American ultramarathon runner, and author of Ultramarathon Man: Confessions of an All-Night Runner, which details ultra endurance running for the general public.