Modern Health Therapy » Effects of sunlight on health http://www.cmorane.com Latest Information About Modern Health Theraphy Mon, 30 Jan 2012 16:00:25 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 Effects of Sunlight on Health http://www.cmorane.com/effects-of-sunlight-on-health.htm http://www.cmorane.com/effects-of-sunlight-on-health.htm#comments Fri, 29 Jan 2010 05:09:41 +0000 andi wang http://www.cmorane.com/?p=76 The sun is essential to life, and humans are necessary for the synthesis of vitamin D, helps the blood circulation and improves some skin diseases. It is also known its effect on the production of neurotransmitters, chemicals that facilitate the activity of neurons. However, they must be weighed very positive effects, with potential negative effects caused by heavy exposure (skin burns and eye damage) or chronic exposure (aging, age spots and skin lesions and skin cancer). Exposures are especially harmful unprotected children and youth ages, clearly related to the risk of developing melanoma (skin cancer).

To guard against such harmful effects, the human skin with the production of melanin, a substance that prevents most harmful solar radiation to penetrate the skin. Melanin is what gives the dark color to the skin and its production is stimulated by the effect of sunlight or chemicals. The number of cells that produce this substance varies according to skin types. People is highest in blacks, and lowest in whites, and among them, the lighter skins are the most susceptible to the effects of the sun.

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