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 ...

HIIT workouts, or high-intensity interval training, are popular among fitness fanatics — they're short, effective and leave you sweaty. But are they really better than a 60-minute run? In the widely ...

When it comes to cardio, high-intensity interval training gives you the biggest bang for your buck: a short sprint-based workout improves your health as much as a longer, low-intensity slog. But ...