Short on time? This 12-minute oblique abs workout hits every angle to help strengthen and define your core. No gym ...

This quick no-crunch ab workout is perfect for beginners, gentle on your back, yet powerful for building deep core strength.

Lie on a bench or floor with a dumbbell in one hand at chest level, feet flat on the ground. Press the dumbbell straight up until your arm is extended. Stand a couple of feet in front of a bench, ...