“Jumping jacks are one of those things that everyone was told to do in P.E. class. They were seen as this sort of no-athletic objective, basic exercise that was just meant to make you tired.

Real talk: The thought of doing jumping jacks may be only slightly more enticing than burpees. It may bring back memories of pre-dodgeball warm-ups back when dodgeball was part of gym class.

Jumping jacks, a staple of school gym classes, are not just for kids—they can also reveal much about your health. Even if you haven’t done the exercise recently, your ability to do them today ...

“Jumping jacks are one of those things that everyone was told to do in P.E. class. They were seen as this sort of no-athletic objective, basic exercise that was just meant to make you tired.

“Jumping jacks are one of those things that everyone was told to do in P.E. class. They were seen as this sort of no-athletic objective, basic exercise that was just meant to make you tired.