However you do it, what makes HIIT work is the intensity. You’re going hard – typically as hard as you can – for a short ...

High-intensity interval training can help overall fitness and athletic performance. Here's the best HIIT workout for runners.

Do you even know what HIIT stands for? We have the answer to that—and a whole list of pulse-pounding workouts.

HIIT is unique in that it's a surprisingly effective workout while requiring only a minimal amount of time.

HIIT effectively improves health outcomes in obese teens, enhancing fitness and metabolic health while reducing body fat and ...

Try these 10 HIIT workouts for beginners. These free at home HIIT workout videos will speed up the metabolism, burn calories and build strength and endurance.

Learn about REHIT, a time-efficient form of HIIT offering significant fitness benefits with increased recovery times. It’s ...

Which is better? The 2008 Physical Activity Guidelines for Americans released by the Department of Health and Human Services recommends that adults age 18 to 64 engage in at least 2.5 hours of ...

What does HIIT actually mean? We break down what high intensity interval training does for your workouts—and how to plan to use them to improve cardio health.

HIIT helps you build and maintain moderate amounts of lean muscle mass. It also produces an after-burn effect called excess post-exercise oxygen consumption, says Cabral.

Patients with IA may benefit from HIIT, which was linked to improved cardiorespiratory fitness without worsening disease activity.