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 ...

Workouts New study says this is the exercise you should do during pregnancy to boost energy and mood — and it's not jogging Workouts Study says this is the real reason you're not seeing workout ...

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 ...

A plank is a core exercise that requires glute and leg strength, as well as shoulder stability. To hold a plank, you need to keep your spine neutral and support it with your abdominal muscles. That ...