If you're serious about burning body fat and getting into shape, one form of training reigns supreme: high-intensity interval ...

Learn more about this metric and the best training sessions to add to your schedule to boost your cardio fitness.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." IF YOU’RE LOOKING for a style of workout that will push you to your limits without needing to exercise ...

Participation in once-popular HIIT workouts is flagging. But experts say it’s still one of the best types of exercise you can ...

HIIT workouts are meant to be fast and furious. They rely on explosive exercises like burpees, high knees, kettlebell swings, sprints, and other moves that spike your heart rate and make you sweat — ...

Try this HIIT workout with no jumping if you want to give your joints a break but still get the afterburn benefits of HIIT. Squat jumps, plank jacks, and alternating split squats are often mainstays ...

Nick Blackmer is a librarian, fact-checker, and researcher with more than 20 years of experience in consumer-facing health and wellness content. High-intensity interval training (HIIT) is beneficial ...