Finish the Women's Health+ Ultimate HIIT Challenge strong with this 20-minute upper body bodyweight workout. Today's program ...

Get ready for a super sweaty 20-minute HIIT workout—all standing, no jumping, and no equipment required! This high-intensity ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Want an exercise program that helps you work out smarter, not harder? You've found it. The Women's ...

Need a break from burpees, jump squats, and mountain climbers? This 20-minute HIIT boxing workout is a novel way to raise your BPMs. “Today, I’m going to be bringing you guys a 20-minute, HIIT ...

Forget hours running on the treadmill or the elliptical machine at the gym — if you’re short on time and looking for a way to torch calories, you’re better off doing a quick HIIT workout. You don’t ...

Join yoga instructor Sophie Jaffe for a 20-minute HIIT Vinyasa class that will add an extra cardio element to your yoga practice. In this routine, you'll start with a gentle Vinyasa flow to warm ...

Workout trends come and go, but when it comes to the biggest bang for your buck, high intensity interval training, or HIIT, has staying power. HIIT’s specific origins are uncertain; some say it dates ...

Lack of time is often the main reason people don't exercise regularly. But a type of interval workout recently popularized by ...

If you’re looking to add some kick to your workout and save time while doing it, it’s probably time to try a 15-minute HIIT workout. “HIIT, or high-intensity interval training, essentially means you ...

New research shows the 4x4 workout format can improve fitness faster than traditional workouts, such as jogging or cycling ...