'if you yearn for the rippled look of "six-pack" abs, consider what you may sacrifice to obtain it: That look might cost you flexibility and freedom of movement. Overdoing abs exercises can lead to a flattening of the lumbar curve, creating a weakened spinal structure. "We're even beginning to see hunchback conditions because of excessive abdominal crunches," claims biomechanics and kinesiology specialist Michael Yessis, Ph.D., author of Kinesiology of Exercise (Masters Press, 1992).
Society's obsession with flat tummies has psychological consequences too. "We want to control our feelings, so we make our bellies hard, trying to 'keep it together,'" says yoga teacher and physical therapist Judith Lasater, Ph.D., author of Living Your Yoga (Rodmell Press, 2000). Soft bellies appear vulnerable; abs of steel don't.
Our center of gravity lies just below the navel, a spot many yoga teachers call the "power center." The source of our vitality, the abdomen is a sacred space in our bodies, so we would do well to shift from criticizing how it looks to respecting how it feels."
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