Today we're going to do a High-Intensity Interval Training workout, or HIIT, H-I-I-T. What we'll do is 20 seconds of an exercise, pushing as hard as you can, then taking 10 seconds' rest.

The term stands for high intensity interval training, and it describes a protocol that pairs hard-hitting exercise periods with short rest breaks for a wide range of health benefits. You'll find ...

Ignite your metabolism with this 30-day HIIT challenge! Burn fat, build endurance, and transform your fitness with ...

Stop running away from your strength training days with these expert-backed AMRAP workouts that make training more fun.

you're not alone —which may be why HIIT workouts have become so popular. HIIT stands for high-intensity interval training and if you're time-strapped, this type of exercise allows you to reap ...