PATHOLOGY

Detailed explanation-1: -From about age 25 to age 50, bone density tends to stay stable with equal amounts of bone formation and bone breakdown. After age 50, bone breakdown (resorption) outpaces bone formation and bone loss often accelerates, particularly at the time of menopause.

Detailed explanation-2: -Osteoporosis is rare in children and adolescents. When it does occur, it is usually caused by an underlying medical disorder or by medications used to treat the disorder. This is called secondary osteoporosis. Sometimes, however, there is no identifiable cause of osteoporosis in a child.

Detailed explanation-3: -Women age 65 and older. Women age 64 and younger who have gone through menopause who are at increased risk for osteoporosis.

Detailed explanation-4: -Bone density changes over time. Throughout childhood, adolescence, and early adulthood, the bones absorb nutrients and minerals, gaining strength. However, as a person enters their late 20s, they have reached their peak bone mass, which means that they will no longer gain bone density.