Throughout our adult lives, the body works day and night to clear away patches of weak bone and build up new and stronger bone. When that balance falters in either direction, it spells trouble. Osteoporosis, which literally means porous bones, occurs when bone breakdown outpaces bone buildup. Just bending or coughing can cause a fracture. Too much bone, on the other hand, can lead to rare bone diseases or even bone cancer.
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