Tony Horton, creator of home workout P90X, was diagnosed with a rare neurological disorder. Now, he is fitter than ever at 66, thanks to his new diet and workouts.

the P90X Plus Series. Beachbody trainer Tony Horton amps up the Muscle Confusion with brand-new moves and never-before-seen workouts all set to hot music created exclusively for P90X Plus by Jason ...

the P90X Plus Series. Beachbody trainer Tony Horton amps up the Muscle Confusion with brand-new moves and never-before-seen workouts all set to hot music created exclusively for P90X Plus by Jason ...

P90X trainer Tony Horton is in the best shape of his life at 66. Here are his top longevity tips.