"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Want an exercise program that helps you work out smarter, not harder? You've found it. The Women's ...

If you’re looking for a workout that gets your heart rate climbing and body sweating in no time, Hannah Bower’s 20-minute ...

Whether you're looking for HIIT, yoga, ab workouts, or cardio classes, our list of the best YouTube workouts will have you ...

As the temperature drops, low-impact cardio workouts can be the way to get your steps in and heart rate up from the comfort ...

Forget hours running on the treadmill or the elliptical machine at the gym — if you’re short on time and looking for a way to torch calories, you’re better off doing a quick HIIT workout. You don’t ...

Sometimes it’s best to keep it simple with your workouts, because if you can just find the motivation to move for 20 minutes on any given day, you’ll be helping to improve your physical fitness and ...

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 ...

Join instructor Sina Riemann for a 20-minute HIIT Pilates class. Riemann incorporates elements of pilates, strength training, and high-intensity cardio for a short but effective workout that's perfect ...

Need a break from burpees, jump squats, and mountain climbers? This 20-minute HIIT boxing workout is a novel way to raise your BPMs. “Today, I’m going to be bringing you guys a 20-minute, HIIT ...