About half of women over the age of 50 experience bone density loss, but most don't even know they have a problem. That's why Dr. Jocelyn Wittstein calls it a "silent disease." Dr. Wittstein has been at the forefront of understanding how joint pain and joint health evolve over a woman's lifetime. She tells Norah how you can reverse bone loss and what impact hormones have on bone density.
<small>Source: CBS News — read the original story there.</small>
