THURSDAY, Feb. 19, 2015 (HealthDay News) -- Skin damage caused by ultraviolet (UV) radiation continues long after you get out of the sun, even in the dark, a new study says.
Researchers explain that UV light from the sun or tanning beds can damage DNA in melanocytes. Melanocytes are cells in the skin that make the substance called melanin. Melanin gives skin its color. Damage to melanocytes is a major cause of skin cancer, according to the researchers.