Treadmills are a great way to get in your daily dose of cardio, but walking or running to nowhere isn’t always a very thrilling idea. For fitness enthusiasts who need a little cardio variety, HIIT (or ...

That HIIT workout routine is upping your cortisol (stress) levels. The head of research at Les Mills wants you to keep it under 40 minutes per week. “Cortisol is not particularly a ‘bad’ hormone, it’s ...

If you’re hunting for an efficient, effective and equipment-free workout you can do at home, you’re in luck. This workout contains 15 exercises, and you’ll do each one for 40 seconds followed by a ...

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 ...

Get ready to unleash your power with Men’s Health’s Ultimate HIIT Workout! In just 20 minutes, burn fat, build lean muscle, ...

"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 ...

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 ...

In simple terms, the 30-20-10 workout involves 30 seconds of low-intensity activity, 20 seconds of moderate-intensity ...

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 ...

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 ...

Experts explain if 20 minutes of daily movement is enough to stay fit after 50, plus how to train smarter in a short workout.