Osteopenia refers to low bone mineral density that is not yet low enough to be classified as osteoporosis. Everyone loses bone mass as they get older, so it is something to watch beginning in your thirties. Osteopenia can be treated with bone building medications before it develops into osteoporosis. Here are some comments by HysterSisters about their experiences taking Actonel, Fosamax, or other bone density treatments.
Read more about Osteoporosis | Bone Density Concerns