Discovering the Truth Behind the Sunshine/Skin Cancer Myth
February 19 2005
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Contrary to popular belief, exposing skin to the sun may stop certaincancers from growing, including skin cancer.
While previous studies have implied this protection comes fromskin cells (damaged by the sun) committing suicide, cutting therisk of cancer, two studies propose the reduced cancer risk stemsfrom an increased production of vitamin D made by sun-exposed skin.
The two studies found:
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Sunshine helped beat the deadly skin cancer malignant melanoma: Melanoma patients with increased levels of sun exposure were less likely to die than other melanoma patients; also patients who already had melanoma and a lot of sun exposure were prone to a less aggressive tumor type.
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The sun helped with non-Hodgkin lymphoma: The risks of developing cancer was reduced by 30 percent to 40 percent when exposed to UV rays from the sun and sun lamps; findings were based on interviews with more than 3,000 lymphoma patients and 3,000 healthy members of the public.
Despite findings, experts do not promote extremely high levelsof sun exposure, as too much sun could also cause cancer. Therefore,it is important to remember to cover up during peak sunshine hours,seek shade and wear factor 15-plus sunscreen.
BBCNewsFebruary 1, 2005