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.

There's more to work than life.

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.