Bear Grylls Reveals Hardest Part of Hosting ‘The World's Toughest Race'

Adventurer Bear Grylls, former host of “Man Vs. Wild” and “Running Wild,” calls his newest project, “The World’s Toughest Race” on Amazon Prime, a “mind-blowing” thing to be part of, full of inspiration and positivity. But there was one part of hosting that, for him, was the toughest part of all.