Balance between need for Vitamin D, and avoidance of skin cancer
Skin cancer fears blinding people to health benefits of sunlight, say scientists SMH, November 18, 2014 Julia Medew Skin cancer prevention campaigns may be steering people away from healthy doses of sunlight, which is now thought to protect against high blood pressure, heart disease and possibly stroke, a group of British scientists say.
In a provocative presentation to a Melbourne conference this week, Martin Feelisch, a professor of clinical and experimental sciences at the University of Southampton, questioned whether it was time for a “radical rethink” of the advice given to people about how much time they should spend in the sun.
Professor Feelisch said recent epidemiological studies suggested that the health benefits of moderate sunlight exposure outweighed the harmful effects of UV radiation on the skin.
In particular, a recent study conducted with colleagues at the University of Edinburgh found that a dose of UV equivalent to about 30 minutes of sunshine during the summer in southern Europe lowered people’s blood pressure……….
But head of the Australian Cancer Council Professor Ian Olver said current public health advice was sophisticated in Australia, balancing the pros and cons of sunlight for Vitamin D and emphasising high UV index times when people are more likely to burn.
“If the UV index is three or above, the sun is intense enough to burn you and therefore you need to take some protection measures. If it’s less than three, you can probably safely go out in the sun. So for vitamin D, early in the morning or late in the afternoon, it might be fine to go out without protection but in the middle of the day, it usually isn’t.”
Professor Olver said despite these campaigns, Australia still had high rates of skin cancer. There were still more than 12,000 melanomas and 430,000 non-melanoma skin cancers diagnosed each year and about 2000 people died from the disease annually, he said. http://www.smh.com.au/national/health/skin-cancer-fears-blinding-people-to-health-benefits-of-sunlight-say-scientists-20141118-11p8we.html#ixzz3JXjrrN1
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