If cardio seems more like a chore and less like a fun sweat session, this 10-minute HIIT workout can help you switch it up. Presented by Allegra, this high-energy routine is a quick way to get your ...

If you love a fast-paced challenge during your workouts, this lower-body HIIT workout is the perfect cardio and strength combo. High-intensity interval training or HIIT is a fitness practice that ...

HIIT workouts require a high level of effort, but the good news is that they burn more calories than moderate intensity workouts and help to speed up the metabolism. Since HIIT (high-intensity ...

Kara Liotta, CPT, is a certified trainer and the co-founder of KKSWEAT. Over time, regular high intensity exercise can also help improve the health of your mitochondria (think of them as the battery ...

But this morning in the most hilarious way possible, Carrie Underwood (with the help of her youngest son) took us straight back to Billy Blanks and the Tae Bo workout craze of that era, as little Jake ...

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

Ready to sweat? Join fitness instructor Christina "Poofy" Moffitino, who will be leading this 10-minute summer sweat HIIT workout alongside class members Lilian Gonzalez and Chelsey Cioli. In this ...

High-intensity interval training, or HIIT, is a great way to torch calories, boost your metabolism and get a great workout in a shorter amount of time. And if you're a fan of hopping on the treadmill ...

Welcome to Start TODAY. Sign up for our Start TODAY newsletter to receive daily inspiration sent to your inbox — and join us on Instagram! We've all been there: The day gets away from us and that hour ...

Belly fat can be so easy to gain and so stubborn to get rid of. I always recommend high-intensity interval training (HIIT) to my clients as a powerful weapon in the battle against the belly bulge.

Welcome to Start TODAY. Sign up for our Start TODAY newsletter to receive daily inspiration sent to your inbox — and join us on Instagram! HIIT workouts require a high level of effort, but the good ...