Exercise for kids should be fun. Instead of working out, think of exercising with your kid as "exercise play." That's the term used by Ewunike Akpan, a personal trainer certified by the American ...

Striking the right balance between exercise rest days and “on” days is key to reaching your fitness goals while staying healthy. “A rest day is when you take a day off from all forms of structured ...

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 ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. For years, my kids ...