When the skin is exposed to ultraviolet rays, the skin produces a molecule that is turned into Vitamin D.
Sun is the source of ultraviolet rays important for Vitamin D production. Due to this reason, in the case of Vitamin D deficiency, it is recommended by doctor's to absorb sunlight by skin. The Vitamin D production occurs specifically by UV B rays rays which lie in the range of 290-315 nanometer.
The chemical 7-dehydrocholesterol absorbs these rays and convert to previtamin D3. Further, previtamin D3 isomerizes to Vitamin D. Other than sunlight, Vitamin D can be taken through diet. The sources include seafood like fish, fish oil, dairy products, beef liver etc. Vitamin D is required for bone and teeth formation, muscle contraction, immune system etc.
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<span>An inflammation of the tissue under the foot (fascia) caused by overuse and improper athletic footwear. Characterized by intense start-up pain under the heel bone: plantar fasciitis
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<span>Both strong and weak electromagnetic radiation emitted from any electrical or electronic equipment will interact with and affect human body's own weakelectromagnetic fields. Therefore, it interferes with your body's natural healing processes and produces all sorts of health hazards.</span>