Today Joe De Sena celebrates running with Dean Karnazes, author of Run, of Ultramarathon Man, and of the new book "A Runner's High."  Karnazes is an internationally acclaimed ultramarathoner and New York Times best-selling author. He was named by Time magazine as one of the 100 Most Influential People in the World and is a recipient of the President’s Council on Sports, Fitness and Nutrition Lifetime Achievement Award. He’s run 50 marathons, in all 50 US states, in 50 consecutive days. He’s run across Death Valley in the middle of summer, he’s run a marathon to the South Pole, and on ten separate occasions he’s run a 200-mile relay race solo. Find out what  drives him to run,  his advice for getting started, for nutrition and the ideal time of day to run. --- This episode of Spartan Up is brought to you by the EXOGEN ultrasound bone healing system. EXOGEN is a non-invasive treatment option that can help heal your broken bone in just 20 minutes a day in the comfort of your own home. If you or a loved one has broken a bone, talk to your doctor about EXOGEN. EXOGEN is indicated for the healing of nonunion fractures and for accelerating the healing of certain acute fractures, with no known contraindications. To learn more visit EXOGEN.com   --- LINKS More about Dean & His Books https://ultramarathonman.com/books Dean K on Instagram https://www.instagram.com/Ultramarathon Spartan Trail series https://race.spartan.com/en/race/trail   FOLLOW SPARTAN UP: Spartan Up on Instagram https://www.instagram.com/spartanuppodcast/ Spartan Up on Twitter https://twitter.com/SpartanUpPod   CREDITS: Producer – Marion Abrams, Madmotion, llc. Host: Joe De Sena Sefra Alexandra, Johnny Waite & Colonel Nye will be back soon, we miss them! © 2021 Spartan