Vitamin D is produced by human skin when it is exposed to UVB rays. Dr. Lani Simpson explains just how our body makes vitamin D and how it converts it into a powerful hormone. She will discuss 25 hydroxyvitamin D and 1,25 dihydroxyvitamin D.

Dr. Lani Simpson demonstrates how a simple exercise can help you regain bone mass.

Dr. Lani Simpson presents a new health tip on how to make your own safe, chemical-free underarm deodorant.

A 60-year-old woman with osteoporosis roller skating and diving for a frisbee. Is Dr. Lani Simpson taking a risk or does she know something that we don’t know?