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.

Tony Horton, the chiseled face and torso behind the extreme workout program P90X, doesn't care if you lose 10 pounds. He's not about helping you get ripped abs in five minutes. Instead, Horton wants ...

Two decades after designing one of the best-selling home workout programs in history, personal trainer Tony Horton said he's in the best shape of his life. When Horton's creation, P90X, hit the ...

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