Pulling your belly in

You can do this exercise anywhere, in any position. Try it while you work at your desk, drive, or stand waiting for your turn at the drugstore.

1. Pull in your belly and imagine pulling your belly button back toward your spine. (Remember to keep your neutral spine while you do this-don't let your back bend forward. Neutral spine is the name for posture that maintains the three normal curves in your spine.)
2. Hold this for about 6 seconds. Remember to keep breathing normally.
3. Rest for up to 10 seconds.
4. Repeat 8 to 12 times.