High-intensity interval training, HIIT for short, is one of the best kinds of sweat sessions if you're looking to get your heart rate up and work your muscles to their fullest capability in a short ...

The latest take on interval training is based on the premise that short spurts (20 seconds at a time) of high-intensity exercise (think of giving 100 percent or more) will provide better results than ...

At only four minutes, Tabata may be the shortest workout you’ll ever do. But make no mistake, you’ll feel the burn each and every second. Read on to learn more about this quick but effective workout.