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Post # 1
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Join Date: 22 Jun 2011
Location:  KuwaitPosts: 448 |
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Causes of Skin Cancer |
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One of the main causes of skin cancer is exposure to ultraviolet radiation (UV rays). UV rays are invisible, and are produced by the sun and tanning lamps. Most often, skin cancer is caused by too much exposure to the sun.
UV rays cause skin cancer by creating changes in the cells of the skin. In some cases, the UV rays cause direct damage to the cells. Tans and sunburns, for example, are both signs that UV rays have damaged the skin. In other cases, UV rays cause skin cancer indirectly, by weakening the immune mechanisms in skin and the rest of the body. Many studies of skin cancer show links between malignant melanomas and a person's intolerance (sensitivity) to sun exposure. The studies show that people who have suffered many severe sunburns in childhood are at greater risk of developing skin cancer. The features most closely related to intolerance to sun exposure include fair or freckled skin, blue eyes, and light-coloured or reddish hair. |
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Post # 2
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Join Date: 18 Jul 2010
Location: KuwaitPosts: 274 |
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RE: Causes of Skin Cancer |
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