Lie on your right side, head resting on a folded towel, knees bent and legs together. Relax your abs completely as you inhale, then exhale through your mouth (make a hissing sound through your teeth), and slowly contract your abs while drawing your lower belly in as far as you can [A]. Place your top hand below your belly button and gently use your fingertips to draw your ab muscles in deeper [B]. Hold for a count of 3, breathing normally. Release and repeat 4 more times. Switch to the left side and repeat the sequence.