P90X Stretch X, the stretch routine included in the popular at-home fitness program, may provide much-needed relief after completing the brands intense cardio and strength training workouts. Its ...

P90X trainer Tony Horton is in the best shape of his life at 66. Here are his top longevity tips. Tony Horton, best known for the P90X workout, says he's thriving at 66 after tweaking his routine.