Tony Horton, the creator of P90X, was diagnosed with a rare neurological disorder. Now, he's fitter than ever at 66, thanks ...

Like many devotees of the Power 90 Extreme, or P90X program, Banawa saw dramatic results. "It was amazing," said Banawa, who quit his job working in nightclubs to become a full-time trainer.

Also known as "jump training," this technique emerged in Eastern Europe in the early 1970s. Coined by American track coach Fred Will, the term derives from the Latin plyo+metrics, or "measurable ...

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 Scheff, lead singer ...

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