Summertime sunshine underscores the dilemma. Dermatologists warn us to stay out of the sun because it can damage skin and predispose us to skin cancer. But new research shows that vitamin D—the sunshine vitamin—helps protect against cancer of the breast, colon and other organs. How much vitamin D is enough?
Just to complicate things, the Environmental Working Group says we put too much faith in many sunscreen ingredients. What should we look for in sunscreen and how can we use them responsibly?
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Guest: Michael Holick, MD, PhD, Professor of Medicine, Physiology and Biophysics, and Director of the General Clinical Research Center at the Boston University School of Medicine; Director of the Bone Health Care Clinic at Boston Medical Center
