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

The hallmark of HIIT is repeated bouts of extremely hard work interspersed with periods of recovery. During your work intervals, you’ll be pushing yourself nearly to your max, Noam Tamir, CSCS, ...

HIIT workouts, or high-intensity interval training, are one of the best ways to exercise at home — no extra equipment ...

When it comes to getting enough exercise, everyone searches for something that speaks to them. Some people love the quiet solitude of jogging alone while others prefer the competitive element of team ...

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

But HIIT is tricky because, as Paul Laursen, Ph.D., co-founder of HIIT Science points out, there are so many different workouts that people refer to as HIIT. Bootcamp-style workout classes like ...

HIIT packs as much intense energy as possible into as little time as possible. And the method's producing mad results. A Metcon3 class at Equinox torches calories during class—and after thanks to High ...

This month we will be alternating between HIIT walks and a simple HIIT routine that uses just your bodyweight to get your heart rate up. On days when we’re doing walking workouts, you have three ...

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

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

The cardio world has split into two passionate camps that argue with the intensity of people debating pineapple on pizza. On one side, you have the HIIT devotees who swear by short, brutal workouts ...

You can always rely on a high-intensity workout to leave you feeling sweaty and exhausted. But a longer workout isn't necessarily better. And a new approach that's gaining fans on social media only ...