Tony Horton, creator of home workout P90X, was diagnosed with a rare neurological disorder. Now, he is fitter than ever at 66 ...

"But once I got started and made the commitment, I was hooked." Like many devotees of the Power 90 Extreme, or P90X program, Banawa saw dramatic results. "It was amazing," said Banawa, who quit ...

Horton — who at 66 still exudes a boyish exuberance — noted that P90X did include recovery days with stretching and low-impact movement such as yoga. But these days, he prioritizes mindfulness ...