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

Get ready to up the ante with a fun-filled outdoor HIIT session, presented by Allegra. Hosted by Class Fitsugar trainer Jenna Willis, and assisted by Nikki Keeshin and Paris Nicole, this HIIT workout ...

This fun workout combines high intensity interval training (HIIT) with energizing movements inspired by Caribbean dance. Led by Selena Watkins, founder of Socanomics, and assisted by Tiff Marie on the ...

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

Here are some of our favorite moves to help you feel strong and age well, no matter your fitness level. Credit...Ariana Drehsler, Nicholas Sansone, Johnny Milano, and Isabelle Zhao for The New York ...

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

Participation in once-popular HIIT workouts is flagging. But experts say it’s still one of the best types of exercise you can ...