Debate over the Benefits of Sun Exposure

In a speech at a recent meeting of the American Association for Cancer Research, an epidemiologist made the provocative suggestion that getting some sun unprotected might actually be good for you — that the increased levels of Vitamin D created by the sun exposure could help protect against certain cancers. Many dermatologists aren't happy about the idea.

Guests:

Ed Giovannucci, professor of Nutrition and Epidemiology, Departments of Nutrition and Epidemiology; Harvard School of Public Health

Cheryl Rosen, head, Division of Dermatology; chair, Ontario Sun Safety Working Group, Toronto Western Hospital

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