There’s a lot of talk in the exercise world about high intensity interval training (HIIT) lately, which is exactly what it sounds like — alternating episodes of exercise with periods of less intensive ...

High-intensity workouts are some of the best ways to improve health and athletic performance. With a short, intense interval workout, researchers have found that some people see benefits equal to or ...

Done correctly, high-intensity interval training is one of the most efficient forms of exercise. Here’s how to do it. By Amanda Loudin Workout trends come and go, but when it comes to the biggest bang ...

When 3 p.m. rolls around, my energy levels are usually at a low — the midday slump is in full effect, and another cup of coffee would only deliver a case of caffeine jitters. What is helpful though, ...

Five minutes of burpees, jump squats and other calisthenics, alternating with rest, improved aerobic endurance in out-of-shape men and women. By Gretchen Reynolds Five minutes of burpees, jump squats ...

In terms of physical benefits of fitness, HIIT is not "better" than any other type of exercise. But it is more efficient. And that's one of its biggest perks — that it can net you major physical and ...