Burn calories and boost endurance with this 20-minute HIIT cardio workout! Includes a full warm-up and requires no equipment ...

HIIT, or high-intensity interval training, can be an efficient, fun way to tackle your cardio workouts, add muscle, and shred serious fat.

Trainers have promised you the moon and more if you use this training protocol. Here's what you need to know about HIIT.

Take your home workouts to the next level with this full-body kettlebell HIIT session! 🔥🏋️‍♂️ Designed for advanced ...

This 20-minute upper body bodyweight workout from Women's Health+ Ultimate HIIT Challenge will help improve your strength and cardiovascular endurance.

High intensity interval training (HIIT) workouts may benefit those who want to lose weight. Learn how they can help reduce body fat and burn more calories.

Here’s what to know about incorporating HIIT training into your workout routine, and how many weekly sessions you should do before taking a rest day.

Interval workouts boomed in popularity, using a variety of work/rest intervals. How do newer HIIT videos compare? The term HIIT didn’t just get watered down; it mutated.

These 30-minute HIIT workouts on YouTube deliver the benefits of a longer workout in less time — and they're so fast-paced that they fly by.

They're meant to be fast and furious, but how long should a HIIT workout be? Fitness trainers share their thoughts.