25th November 2019

webmd
15

Is the sun good for the skin?

Jan. 29, 2007 -- It just may be that brief periods of unprotected exposure to the sun are actually good for your skin. That is the suggestion from early research conducted at Stanford University. Sunlight triggers the synthesis of vitamin D within the body.

Correspondingly, what happens to the skin when exposed to the sun?

Ultraviolet wavelengths can damage or destroy the DNA in cells, causing mutations that can turn into cancers. Once the skin is exposed to sunlight, the melanocytes try to cover all the cells with melanin, like sun hats that block UV rays. UVA speeds skin aging and boosts skin cancer risk; UVB causes sunburn.

Is the sun bad for skin?

Ultraviolet (UV) radiation from the sun is the number-one cause of skin cancer, but UV light from tanning beds is just as harmful. Exposure to sunlight during the winter months puts you at the same risk as exposure during the summertime, because UVA rays are present in daylight.
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