Want an exercise program that helps you work out smarter, not harder? You've found it. The Women's Health+ Ultimate HIIT Challenge is a week-long program that combines high intensity interval training ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Getty Images If you hate running, the good news is it’s not the only way to burn calories ...

If you hate running, the good news is it’s not the only way to burn calories and build muscle — HIIT training is a great alternative, especially if you’re short on time. In fact, you’re more likely to ...