Osteoporosis – Overview
Osteoporosis refers to a loss of bone mass in which the bones become porous and fragile. Our bones are constantly being remodeled, with bone tissue being broken down and rebuilt on a regular basis. Bone density (the degree of mineralization of the bone matrix) usually increases until about the age of 30, but after that, trouble can begin. Osteoporosis sets in when more bone is lost than can be rebuilt. Eventually, bones become brittle and easily fractured.