True story: You don't need a lot of time to squeeze in a decent sweat sesh. In fact, research shows that high-intensity interval (HIIT) workouts that last for as little as 10 minutes are more ...

If you've gotten bored doing the same workouts over and over, we recommend switching up your routine ASAP. One way to do this is with quick high-intensity workouts. A great way to do this is with ...

All runners know that cross-training is essential — but forcing themselves to actually do it can be a struggle. That's why we love this circuit led by fitness instructor Ashley Joi. It's actually the ...

Add Yahoo as a preferred source to see more of our stories on Google. High-intensity interval training (a.k.a., HIIT) is a triple threat: “It’s quick, easy, and effective,” says Angela Gargano, a ...

Discover how HIIT workouts can torch fat, boost fitness, and save time! Get the ultimate guide, sample routines, and tips to transform your fitness game. Do you feel like it’s time to change up your ...

"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 ...

Here's a quick and intense cardio workout that will spike your heart rate and build muscle. It'll only take you 30 minutes or less, and it's varied enough that it'll also keep you (and your muscles) ...

Even super-fit trainers have to work out to maintain their muscular physique. So when it comes to effective workouts, we’ll have what they’re having. Forzaglia developed this 10-minute HIIT cardio ...