The Greatest Public Health Mistake of the 20th Century


By Dr. Mercola Vitamin D received its name because scientists initially assumed it was a vitamin, but further research showed it had been incorrectly categorized. It’s actually a prohormone, produced by your body from cholesterol in response to sunlight striking your bare skin. As a prohormone, vitamin D has enormous influence on your health, and it’s the only known substrate for a powerful repair-and-maintenance steroid hormone.1 Receptors that respond to vitamin D have been found in almost every type of human cell. So, far from being a mere aid in bone formation, vitamin D is involved in a wide range of repair and maintenance functions, influences genetic expression, helps regulate immune function and more. Unfortunately, dermatologists have spent decades promoting sun avoidance2,3 and urging people to wear sunblock before venturing outside. As a result of this misguided advice, the field of dermatology has done tremendous harm to public health. Sun Exposure Does Your Body Good
http://articles.mercola.com/sites/articles/archive/2017/05/16/avoiding-sun-exposure-health-mistakes.aspx

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