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

REHIT is also ideal for people who are experiencing a weight-loss plateau, Mansour says. If you do a lot of high-intensity workouts without much rest, you're likely taxing your body more than you need ...

New evidence shows that short, intense HIIT workouts can deliver big health benefits for obese teens, improving fitness, blood pressure, and cholesterol, even if the scale doesn’t change. Study: The ...

Burn calories and boost endurance with this 25-minute no-repeats HIIT workout! 🔥 This full-body routine is fast-paced, effective, and requires no repeats—so you’ll never get bored. Perfect for ...