High-intensity interval training is one of the best ways to pack a lot of exercise into a short period of time. HIIT workouts ...

That HIIT workout routine is upping your cortisol (stress) levels. The head of research at Les Mills wants you to keep it under 40 minutes per week. “Cortisol is not particularly a ‘bad’ hormone, it’s ...

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 — ...

High-intensity interval training, also known as HIIT, is a great way to improve your overall cycling performance. Working ...

Ready to sweat? Join fitness instructor Christina "Poofy" Moffitino, who will be leading this 10-minute summer sweat HIIT workout alongside class members Lilian Gonzalez and Chelsey Cioli. In this ...

High-intensity interval training (HIIT) can look intimidating to beginners, but we’ve got the perfect routine for anyone taking their first shot at it. There are just eight moves to master in this ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." High-intensity interval training (otherwise known as HIIT) may sound, well, intense. And it can be. But ...

It’s tricky to say exactly what the benefits of Housework's specific series of exercises and class flow produce. However, ...

If you had to pick the better runner — a sprinter or a marathoner — the answer would depend on the type of race. In a 200-meter race, the sprinter will have an edge over the marathoner, but if it ...

A recent study reveals exercise's vital role in cancer protection. Australian researchers found that resistance training and ...