Torch your muffin top with 9 expert-backed HIIT moves that burn fat, boost metabolism, and sculpt your waist in 15 minutes.

Get ready for a full-body workout like no other! This kettlebell HIIT session sculpts every muscle group with fresh, ...

HIIT workout founded by a Japanese Olympic coach that uses periods of intense exercise and rest to burn calories.

In TODAY.com's Expert Tip of the Day, a trainer explains how incorporating HIIT into a weekly workout routine can boost one's ...

Credit: Shutterstock If you’ve ever done a high-intensity interval training (HIIT) workout, you know it’s no joke. Sprints, ...

You can reap the many health benefits of HIIT by exercising for a shorter — yet more intense — period of time.

We all grow older. There is nothing we can do about that, but the quality of those years is within our control, as recent ...

"Plan for one upper-body, one lower-body and one full-body strength session per week, lasting 35 to 45 minutes each. Any more ...

People who’ve had a stroke might worry about pushing themselves hard at the gym. New research suggests high intensity interval training (HIIT) can do more to improve fitness than moderate-intensity ...

For many, modern life has turned into a chair-bound marathon. Footsteps fade, finger taps rise, and prolonged stillness ...

New research from Edith Cowan University shows that a single bout of weight training or HIIT can boost anti-cancer myokines and reduce breast cancer cell growth in survivors.

REHIT is also ideal for people who are experiencing a weight-loss plateau, Mansour says. If you do a lot of high-intensity workouts without much rest, you're likely taxing your body more than you need ...