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 ...

Push your limits with this advanced HIIT workout—no equipment needed, no repeated moves, and full-intensity exercises for ...

That HIIT workout routine is upping your cortisol (stress) levels. The head of research at Les Mills wants you to keep it under 40 minutes per week. “Cortisol is not particularly a ‘bad’ hormone, it’s ...

As the temperature drops, low-impact cardio workouts can be the way to get your steps in and heart rate up from the comfort ...

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 ...

Those mid-class sprint intervals are tough. But experts break down whether they really get you ready for race day.

High-intensity interval training will keep you moving toward your health goals this holiday season — without requiring a ton of time!

Researchers from The University of Queensland examined 194 adults aged 65 - 85 with no signs of cognitive decline. Participants were assigned to a low-intensity, moderate-intensity, or HIIT workout ...

You’re not a bear, so don’t hibernate this winter and let your fitness fall off. Use these exercises to stay fit.

Welcome to Start TODAY. Sign up for our Start TODAY newsletter to receive daily inspiration sent to your inbox — and join us on Instagram! This month we will be alternating between HIIT walks and a ...