On social media, she is known by the username Train with Joan. The difference is obviousโ€”in her 70s, she struggled with excess weight and appeared unhappy, while in her 80s, she posed in top shape with a smile on her face.

"Iโ€™ll be honest with you... I was never one of those women who love exercising. For most of my life, I avoided it, I was too busy raising children, working, taking care of everyone else. By the time I had a moment to catch my breath, I was 70 years old, tired, and taking more medication than Iโ€™d like to admit. I wasnโ€™t looking for a transformation. I just wanted to feel like myself again," she wrote.

She further explained that it all started with small steps at her daughterโ€™s urging and she realized she could move more the more she exercised.

This video on Instagram has so far garnered over 20 million views and a million likes.

"You are such an inspiration," "Joan, you changed my mind. I want to be like you when I grow up," "Well done," "You are proof that itโ€™s never too late," are some of the comments.