Workouts make you younger. It all boils down to the fact that exercise increases your mitochondria, the power centers of every cell in your body.

The more plentiful and efficient your mitochondria are, the better each cell worksโ€”whether thatโ€™s a skin cell cranking out plumping collagen or a muscle cell laying down strength-building fibersโ€”and the younger your body looks, feels, and operates.