HIIT (high-intensity interval training) is a form of interval training that involves short bursts of super-intense exercise with periods of rest or lower intensity exercise in between.

No gym? No problem. We've done the work(outs) to find the best online fitness programs — from streaming options to advanced ...

Personal trainers outline six of the best HIIT treadmill workouts to run your way to a flat belly and lose weight.

With any cardio exercise, 150 minutes a week is a great baseline, so you can break that up however you want. Dancing for about 30 minutes a day, five days a week, is optimal. It's also a good idea to ...

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

While you cannot spot-reduce fat, some types of exercises, such as HIIT and strength training, could help you lose more belly fat than others.

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

Instead, it should be part of a well-rounded exercise program. It is best to perform HIIT workouts on nonconsecutive days and to do less-intense types of physical activity on other days.