By Laura Beil, Men's HealthAt his gym, Tony Weathers was known as Weatherman—a ripped demigod who could curl 225 pounds and run a mile in under 5 minutes. Outwardly he was a humble sort, but inside, down to his bone marrow, he hated to lose. If his fitness class was assigned one sprint around the gym in 15 seconds, Weathers ran two. If a coworker beat him in table tennis in the company break ro