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 ...

High-intensity interval training involves performing an all-out, exhaustive physical effort for a short time followed by a short (sometimes active) recovery. Its benefits are clear: Effective HIIT ...

High intensity workouts are a great way to get in some fast exercise. Here’s one to get started with. High intensity workouts are a great way to get in some fast exercise. Here’s one to get started ...