Medicine: Balancing Act

"Sit up straight," the age-old order to children, does more harm than good, in the opinion of Southwestern Medical College's Dr. Paul C. Williams. Last week Orthopedic Surgeon Williams told 800 doctors at the Oklahoma City Clinical Society that people would do well to forget all about "correct posture." Reason: it is the cause of backache in about half the adult population.

Dr. Williams traces low-back pain to man's upright stance. To support the body's "massive superstructure" on two feet, he says, is like balancing a baseball bat on a fingertip. In achieving the feat, man gets a hollow (lordosis) in his...

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