For decades, scientists have tried to understand what separates people capable of extraordinary endurance from everyone else. Is it genetics? VO₂ max? Pain tolerance? Mental toughness? Dean Karnazes has spent more than 30 years giving them a remarkable case study. He’s run 50 marathons in 50 states in 50 consecutive days, crossed Death Valley in
Christopher Nolan recently told “Today” that after giving his all for “The Odyssey,” it will be “at least” three years until he makes another film. “I think I definitely reached the limits of my own endurance and everyone’s,” Nolan said. “I mean, it’s ‘The Odyssey,’ of course it should be difficult. We’re not doing a
