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Improving posture
Contrary to popular belief, standing at attention--with head and shoulders rigidly pulled back and lower back excessively arched--is not correct posture and can be hard on the back. Good posture allows the body to follow the natural S-shaped curve of the spine. As simple as that sounds, however, poor habits, injury, and even ill-fitting shoes can contribute to improper spinal alignment. Poor posture can strain muscles and ligaments and increase the risk of compressed nerves.
Posture varies with age. As people get older and lose height because of disk changes, the curve in the lumbar region of the back tends to straighten, leading to a slight stoop, which is normal. In addition, the curve in the thoracic region tends to become accentuated with age.
This section also includes tips for improving posture.
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