Dead Bug (from Pilates): Lie on your back with all fours straight up. Lower your left leg and right arm at the same time, and then bring them back up. Then repeat with the opposite arm and leg.
Punching Bag Crunches: Do a traditional crunch, with your knees bent and feet on the floor. When you crunch up, have someone lightly punch your abs (while wearing a boxing glove, preferably). That forces your abdominals to stay tight and contracted throughout the movement. The abs-alicious Janet Jackson has been reported to do these.
Turkish Getup (advanced): Lie flat on your back with one arm straight up, perpendicular to the floor (you can be holding a weight). Keeping your arm above your head the whole time, stand up, using your legs and free hand. Then get back into the down position (all while keeping the arm up). Repeat with the other arm up. It works the entire coreand is a true fat burner.
This material came to you from YOU: Being Beautiful, by Michael F. Roizen, M.D., and Mehmet C. Oz, M.D.