A sudden and sustained loss of your period is a major warning sign for RED-S (relative energy deficiency in sport), a condition brought on when athletes operate on caloric deficiency for an extended ...

Think about how you feel doing your 12-3-30 routine on the treadmill versus during a high-intensity interval (HIIT) class. You probably feel like you could maintain that first one for a pretty solid ...

The alarm clock blares, and you reach for your running shoes without thinking about it. Next thing you know, you’re jogging through your neighborhood on the same route as every other morning. You are ...

We all know that interval training cuts cardio time pretty much in half. But what about a straight-up lifting workout? How do you fit in more moves in less time at the gym? The secret is in ...