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Over exposure to the sun not only gives you a sunburn but can also have seriuos repercussions on your health.

Addressing the health benefits and risks, involving vitamin D or skin cancer, of increased sun exposure.\nMoan J, Porojnicu AC, Dahlback A, Setlow RB.\nProc Natl Acad Sci U S A. 2008 Jan 15;105(2):668-73. Epub 2008 Jan 7.\nPMID: 18180454

Vitamin D is a fat-soluble vitamin that is essential for maintaining normal calcium metabolism (1). Vitamin D3 (cholecalciferol) can be synthesized by humans in the skin upon exposure to ultraviolet-B (UVB) radiation from sunlight, or it can be obtained from the diet. Plants synthesize ergosterol, which is converted to vitamin D2 (ergocalciferol) by ultraviolet light. Vitamin D2 is less active in birds than vitamin D3 and may also be less active in humans (2). When exposure to UVB radiation is insufficient for the synthesis of adequate amounts of vitamin D3 in the skin, adequate intake of vitamin D from the diet is essential for health.

Tuohimaa P, Pukkala E, Scelo G, Olsen JH, Brewster DH, Hemminki K, Tracey E, Weiderpass E, Kliewer EV, Pompe-Kirn V, McBride ML, Martos C, Chia KS, Tonita JM, Jonasson JG, Boffetta P, Brennan P. Does solar exposure, as indicated by the non-melanoma skin

Today, most of us are aware of the health risks that are caused due to asbestos exposure. Mesothelioma is one of them, caused due to prolonged exposure to asbestos.

The remainder of the CARAT Web site provides details on what asthma is, what causes asthma symptoms, and what can be done to reduce exposure to these asthma triggers.

Dr. Stephen Levin, who died at age 70, helped raise awareness of occupational health hazards, including asbestos exposure.

This web site is dedicated to vitamin D and cancer. This is because exciting new research indicates that vitamin D-whether produced in the skin as a result of exposure to ultraviolet radiation (from sunlight or sun lamps) or obtained from supplementation with cholecalciferol (vitamin D3)-may help cancer patients. However, the research is far from complete.

ScienceDaily (Feb. 10, 2009) - Vitamin D is significantly associated with muscle power and force in adolescent girls, according to a new study. Although vitamin D is naturally produced in the body through exposure to direct sunlight, vitamin D deficiency has become widely common in the United States. Vitamin D deficiency has been shown to have a significant negative impact on muscle and bone health, and can lead to conditions including osteoporosis and rickets.

This is a very long newsletter. I will answer questions about oil versus water-soluble Vitamin D, depression, mental clarity, malignant melanoma, Crohn's disease, an imagist poet, multiple sclerosis, sun-exposure, high-intensity red light and collagen repair in the skin, non-alcoholic fatty liver disease, influenza, the 1918 influenza pandemic, statins, the new Food and Nutrition Board, thyroid disease, chronic fatigue syndrome, athletes, the upcoming 14th Vitamin D Workshop, prostate cancer, the wrong blood test, pregnancy, autism, Alzheimer's disease, soap and sebum, asthma, sleep, the co-factors vitamin D needs to work (all contained in spinach), and-my favorite-UVC light and Vitamin D

Research finds people with gene variant who lack vitamin D, produced from sun exposure, can develop condition

"This website is about Vitamin D and MS Multiple sclerosis (MS) is a chronic disease of the central nervous system (CNS), with an uncertain cause. Colleen Hayes and Donald Achaeson have suggested that insufficient sunlight exposure and chronic viral infections might be unrelated environmental risk factors for MS. These risk factors may act synergistically to enable the pathogenic autoimmune response. The prevalence of MS is highest where environmental supplies of vitamin D are lowest. Sunshine enables the production of vitamin D3 (VD3) in the skin. Epidemiological studies have shown that higher vitamin D blood levels are associated with lower risk, less relapses and a slower progression of multiple sclerosis. Higher vitamin D levels can be achieved in part by increased oral intake of VD3. Optimal health requires serum 25 hydroxyvitamin D levels higher than 20 ng/ml (50 nmol/L) P Lips, 40 ng/ml (100 nmol/L) P Heaney or at least 40 ng/ml (100 nmol/L) R Vieth. "