Osteoporosis is a chronic degenerative bone disease. Bone loss is often referred to as a "silent disease" because it occurs without symptoms. Bone isn't lost all at once, it sneaks up on you over a lifetime. Studies show that by their 40's both women and men are losing bone at a rate of approximately 0.5 percent a year. We now know that a declining level of sex hormones plays a significant role in the development of bone loss and osteoporosis. Replacing your hormones through bioidentical hormone replacement therapy can help slow bone loss and in some cases partially reverse it.