How do you build better Abs?

Don't work your abdominal muscles every day. "Physiologically, your abs are like any other muscle in your body," says David Pearson, Ph.D., C.S.C.S., an exercise scientist at Ball State University. Train them only 2 or 3 days a week. Exhale forcefully at the top of the movement when you do abdominal crunches. It forces your abs to work harder.