For years, my kids have been following me into my garage gym—even before we had a proper home gym, they would steal stray dumbbells or yoga balls that I thought I had bought for myself. I would ...

"Aren't they a little young for that?" This is a question I used to hear regularly from parents when I'd recommend strength training for the kids I worked with, whose ages ranged from 6 to 18 years ...

Zachary Gillen does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...