Reply To: Hi, I wanted to ask for the Vitamin D Council's opinion/views on this new research study from Yale University's Skin Diseases Research Center (which was published in the journal Science yesterday) that is making the science media rounds. The study argues that UV exposure can lead to chemical damage (not only radiation damage) to DNA in skin cells that can show up long after one has been exposed (up to three hours). Apparently the study used exposure to UVA only, not the Vitamin D-producing UVB. I suppose my concern arises from the fact that I get moderate sun exposure year round every 2-3 days through sunbed use in winter and natural sunlight in summer. And these researchers, as they always do, raised the specter of higher melanoma risk if a person is exposed, which of course worries me a lot (even though I have never burned). Thank you so much in advance for your reply!