Get a show-off stomach! Your core is the center of your body. You need to identify it, engage it and have all movements extend from it. It's also key to go beyond basic crunches. They're one-dimensional, hitting only the rectus abdominis (or six-pack). My quickie series targets the midsection from multiple angles, part of the reason why my clients over 40, like J.Lo, still have sculpted abs. Get the workout here | Health.com
