Summary: Men’s Health says that Dean Karnazes is one of the 100 Fittest Men of ALL Time. He’s done crazy things—like running 350 miles at once. Plus running a marathon to the South Pole in negative 40 degrees. Then there was the time he ran 50 marathons in all 50 US states in 50 days—finishing with the NYC Marathon which he banged out in 3 hours flat. (Nice!)
