1.   Hologic makes medical equipment that measures bone density, used to diagnose osteoporosis.

2.   Is essential for normal skeleton development in children and adolescents, and for maintaining high bone density in young adults.

3.   The benefits included higher bone density, faster reaction times, greater muscle strength and better balance.

4.   They argue, as others have done, that screening is appropriate because bone density is related to subsequent risk of fracture.

5.   When resorption overtakes formation, the result is a Decrease in bone density and strength.