High-intensity interval training is one of the best ways to pack a lot of exercise into a short period of time. HIIT workouts are so efficient because they alternate short bursts of very intense ...

This 15-minute HIIT ab workout helps you get the most core-strengthening benefits from every rep by focusing on time rather than reps. Long sessions at the gym have their place, but when it comes to ...

If you’re pressed for time and want to work your entire body, we've got the perfect sweat sesh for ya. This full-body HIIT (or, high-intensity interval training) workout will get your heart rate up ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Picture this: a dimly lit workout studio, the pounding of sneakers as people furiously push through ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Between AMRAPs, EMOMs, WODs, PRs, and more, have you ever found yourself scrolling through FitTok asking: ...

Try this HIIT workout with no jumping if you want to give your joints a break but still get the afterburn benefits of HIIT. Squat jumps, plank jacks, and alternating split squats are often mainstays ...

Start getting stronger and sweat smarter with this fast-paced lower body bodyweight workout, which is part of the Women’s Health+ Ultimate HIIT Challenge. In just 20 minutes, you'll burn a ton of ...

If you want a heart-pumping workout without stressing your joints, you’re in luck: This Pilates HIIT workout uses low-impact exercises to get you sweating. The final installment of Sweat With SELF’s ...

On those really busy days when you have almost no time to exercise, you might wonder if a 20-minute workout is even worth it. But we’re here to let you know that, if that’s the time you have, you ...