"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." YOU MIGHT THINK back to your childhood gym class and remember learning the basics of physical fitness, ...

Things high school gym class was good for: gossiping, checking out your wanna-be S.O. in track shorts, and kinda-sorta learning basic exercises. Jumping jacks were one such staple of P.E., and for ...

Look, I’m gonna be straight with you – those online calculators that tell you exactly how many jumping jacks you need to burn 500 calories? They’re basically making educated guesses about your body.

Whether you’re a jumping jack fanatic or you haven’t done a jumping jack since middle school gym class, there’s one thing (okay, two things) most of us can agree on: jumping jacks are fun (they make ...

Not everyone has time for long workouts, but every form of exercise has benefits. Walking, jumping jacks, and yoga work the ...

YOU MIGHT THINK back to your childhood gym class and remember learning the basics of physical fitness, setting a foundation for the grown-up workouts you continue to do today. While you likely keep ...