We are lead to believe that sun exposure must be combated with sunscreen agents, and yet sunscreen may offer little protection to your skin from Melanoma, the deadliest of skin cancers.
Therefore it may seem wise to just avoid the sun all together. However, appropriate sun-light actually prevents cancer. An examination of 506 regions found a close inverse correlation between cancer mortality and levels of ultraviolet B light. The likeliest mechanism for a protective effect of sunlight is vitamin D, which is synthesized by the body in the presence of ultraviolet B. There are 13 malignancies that show this inverse correlation, mostly reproductive and digestive cancers. The strongest inverse correlation is with breast, colon, and ovarian cancer. Other cancers apparently affected by sunlight include tumors of the bladder, uterus, esophagus, rectum, and stomach.
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Sunscreen & Vitamin D Robert C. Scott, DC CCSP As summer …
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