India, Aug. 19 -- As you grow old, popular discourse may tell you to take it slow and not work out regularly, so as not to put pressure on your body. But research shows that it is far from the truth. Regular workouts, in fact, even strength training, are the secret to being fit in your old age.

In an August 18 Instagram post, Ruth, a 100-year-old woman, proved our theory true. The video shared by a page, Evry.day Club, shows the host, Ryan James, asking Ruth about the secret to longevity and her fitness as she works out on the seated elliptical machine. In the clip, she revealed that she works on the equipment for an hour, completing almost 4 miles.

Sharing Ruth's video, Ryan captioned the post, "I started walking 4 miles a day" - Ruth ...