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Midday sun holds the key to good health

Scientists at The University of Manchester have today unveiled new research which claims that going out in the midday sun, without sunscreen, is good for you.

The research, led by ultra-violet radiation expert Ann Webb, supports claims that exposing unprotected skin to the sun for short periods helps the body to produce essential Vitamin D.

Dr Webb has produced new figures which not only predict when is the best time to expose unprotected skin to the sun in order to maximise Vitamin D production, but also for how long depending on location. She has calculated that 'ten to fifteen minutes* at noon' is the optimum time for the average person in the UK to spend in the sun without the use of sunscreen.

"Our calculations have found that the best time to be out in the sun if you want to maximise Vitamin D production and its benefits is midday. This is when the sun is highest in the sky and this is when there is more UVB radiation in the spectrum which triggers Vitamin D production in the skin," says Dr Webb.

Vitamin D promotes the absorption of calcium and phosphate from food and is essential in the formation of bones and teeth. A deficiency of Vitamin D leads to a failure of the bones to grow and causes rickets in children and osteoporosis in adults. Recent research also suggests that Vitamin D can help reduce the risks of colon, breast and prostate cancer.

Dr Webb, says: "The two sources of Vitamin D are through your skin or through foods like sardines (fatty fish), but because our everyday diet isn't very rich in the vitamin it is essential that we get it from the sun".

"You do not need to sunbathe to get your Vitamin D and we are not advocating people do not protect themselves with sunscreen, but if you put sunscreen on before you step out of the house you will not reap any health benefits provided naturally by the sun. After a short period of unprotected exposure you should cover up or put on sunscreen to avoid sunbur
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Contact: Simon Hunter
simon.hunter-2@manchester.ac.uk
161-275-8387
University of Manchester
26-May-2005


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