For fitness enthusiasts who need a little cardio variety, HIIT (or high-intensity interval training) has long been a popular choice. According to a study in Biology of Sport, HIIT — which pairs short ...

Wondering if your yoga practice is enough to get you in shape? The answer might surprise you! We explore how different styles ...

Being an athlete is another. If you're a true athlete, you'll be able to pass these tests shared by trainer Matt Casturo.