Thomas Ramey Watson

20 minutes of exercise a day helps keep your muscles young

You probably don’ t have

to become an exercise fanatic like Jack to keep your muscles regenerating as you grow older.

In an animal study, just 20 minutes on a treadmill 6 days a week was enough to bestow up to triple the number of stem cells produced in the test subjects.

And those extra stem cells are likely behind the subsequent jump in new muscle fibers and additional muscle mass that those test subjects experienced as well.

One other benefit: The older rats in the study also exhibited an uptick in “spontaneous locomotion” — a naturally occurring increase in their physical activity levels.

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