Dean Karnazes is an ultramarathon runner. He’s run 350 miles without sleep, ran across the United States, and in one incredible consecutive 50-day stretch ran 50 marathons, one in each state.
Dean Karnazes is an ultramarathon runner. He’s run 350 miles without sleep, ran across the United States, and in one incredible consecutive 50-day stretch ran 50 marathons, one in each state.