Tuesday, December 18, 2007

Lung cancer 'link to lack of sun'

Lung Cancer linked to lack of sun - BBC News
"...Researchers found lung cancer rates were highest in countries furthest from the equator, where exposure to sunlight is lowest...It is thought vitamin D - generated by exposure to sunlight - can halt tumour growth by promoting the factors responsible for cell death in the body...vitamin D stimulated the release of chemicals which, in combination with calcium, formed a glue-like substance which bind these cells tightly together, and put a brake on their division...There was also evidence that vitamin D may also slow the progress of cancer once it develops..."

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