Tony Horton, best known for the P90X workout, says he's thriving at 66 after tweaking his routine. Horton was diagnosed with a rare illness in 2017 and has since followed a flexible plant-based diet.

If you have 30 minutes a day, you can get totally ripped. It’s not a sequel to P90X or any other program. These efficient 30-minute workouts are designed so you can get extreme results in less time.

If you love P90X and you're saying, "Give me more," or, "I need a challenge"-then here it is, the P90X Plus Series. Beachbody trainer Tony Horton amps up the Muscle Confusion with brand-new moves ...

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