Dean Karnazes can jog 350 miles without stopping thanks to rare genetic condition

Dean Karnazes can jog 350 miles without stopping thanks to rare genetic condition | Daily Mail Online: "He has run a marathon to the South Pole in temperatures of −13 °F, completed fifty marathons in fifty days - one in every state - and most famously sprinted 350 miles in just 80 hours and 44 minutes without sleep."