Bear Grylls has done some pretty gnarly stuff in his lifetime, stuff that even the most hardened men around the world probably wouldn’t want to consider. He’s tackled resistance-to-interrogation (R2I) training during his bid to join the U.K.’s elite SAS special forces, survived a near-fatal parachuting accident in Africa that left him terrified to engage in skydiving again, and braved the most hellish landscapes on the planet, from the crashing waves of the North Atlantic to the summit of Mt. Everest.