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Sunshine and cancer
I hope this link works. It's a subscriber link http://www.newscientist.com/article/mg17924074.800.html
IN essence, moderate sun exposure (all year round) is beneficial to a degree that outweighs the risk from skin cancer. It reduces your risk of other forms of cancer including colorectol and prostate cancer, as the vitamin D produced when the skin is exposed to sun is a strong anti-cancer agent.
Note the word *moderate*. You don't need a lot of exposure, but you do need some. Frying on the beach is not moderate. Getting red/burnt skin is not moderate.
However, sunscreening yourself to the extend that you're not getting any real sun on the skin at all may not be ideal either.
There's a reason Europeans evolved with white skin. (Australian aborigines evolved with black skin, which reminds us that a moderate dose for white Australians is a lot lower than a moderate dose for a white person in England)
I'd love to know if the correlation between sunlight and depression (lack of sunlight leads to depression) is caused by sunlight on the skin or sunlight viewed by the eyes. Does anyone know? the latter might make a partial case against sunglasses.
IN essence, moderate sun exposure (all year round) is beneficial to a degree that outweighs the risk from skin cancer. It reduces your risk of other forms of cancer including colorectol and prostate cancer, as the vitamin D produced when the skin is exposed to sun is a strong anti-cancer agent.
Note the word *moderate*. You don't need a lot of exposure, but you do need some. Frying on the beach is not moderate. Getting red/burnt skin is not moderate.
However, sunscreening yourself to the extend that you're not getting any real sun on the skin at all may not be ideal either.
There's a reason Europeans evolved with white skin. (Australian aborigines evolved with black skin, which reminds us that a moderate dose for white Australians is a lot lower than a moderate dose for a white person in England)
I'd love to know if the correlation between sunlight and depression (lack of sunlight leads to depression) is caused by sunlight on the skin or sunlight viewed by the eyes. Does anyone know? the latter might make a partial case against sunglasses.