Find flexible fitness classes, holiday camps and a massive soft play zone at Fit City Kids Chicago, where fitness and fun meet.

This is an installment of Good Fit, a column about exercise. I took my first CrossFit Kids class when I was 10 years old, the summer between fifth and sixth grade. I remember a circuit that involved ...

It wasn’t so long ago that researchers reported that letting kids play video games — active “exergames,” that is — could help them burn energy. Now the latest study shows … maybe not so much. The ...

Nowadays, when children are bored, they don't go outside and play with the other kids in their neighborhood, pick up a book, or even just sit and play with their toys. Instead, many children turn to ...

Huffing through yet another long run together, my friend and I got to talking about how unlikely it was that the two of us had, one, met at the gym, and two, were now training for a marathon. Like the ...