It’s only six moves and you do each one lying on your back ...

Let’s be honest: you’ve probably done thousands of sit-ups thinking they’d give you a stronger core. We all have. But here’s the uncomfortable truth—those endless crunches aren’t doing much for you.

A strong core improves posture and stability. Try this bodyweight plank routine at home. It only takes five minutes.

Lately, my core routine has felt staler than week-old sourdough bread. Sure, classic moves like crunches, Russian twists, and planks are great (and effective!), but in order to reap the gains of ...