Named by TIME magazine as one of the “100 Most Influential People in the World,” Dean Karnazes has pushed his body and mind to inconceivable limits. Among his many accomplishments, he has run 50 marathons, in all 50 US states, in 50 consecutive days. He’s run across Death Valley in the middle of summer, and he’s run a marathon to the South Pole.

 

On ten separate occasions, he’s run a 200-mile relay race solo, racing alongside twelve teams. His competitive achievements include winning the World’s Toughest Footrace, the Badwater Ultramarathon, and the 4 Deserts Challenge, racing in the hottest, driest, windiest, and coldest places on earth.

 

In this episode, Dean shares his journey from business to becoming a professional ultramarathon athlete.