AvatarRachel RatayThe 2-Minute Workout That Works Your Abs From Every AngleMen's Health - Kelsey CannonHow strong is your core? Find out with this ultimate ab challenge Ripped abs are reason enough to add some core moves to your routine. But a strong torso can also give you the foundation you need to lift more weight with less risk of injury. "Crunches alone won't get the job done, though," says Todd …