The sun gives off energy that we call "ultraviolet radiation," because it has a shorter wavelength than visible blue or violet light. UV radiation is known to cause skin cancer and photoaging.
By Heather Brannon, MD, About.com
Updated: July 03, 2008
About.com Health's Disease and Condition content is reviewed by the Medical Review Board
The sun gives off energy that we call "ultraviolet radiation," because it has a shorter wavelength than visible blue or violet light. UV radiation is known to cause skin cancer and photoaging.
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