Would you climb to the top of Kilimanjaro in 30-degree weather wearing nothing but boots, shorts, and a knit cap? Today's guest did it and he wrote the book on it. We have NY Times bestselling author of What Doesn't Kill Us, Scott Carney to tell us why he put his body through such extremes and why we all should step out of our physical comfort zones for better health, mental resilience, and disease resistance. For the show notes and links mentioned in this episode CLICK HERE.