October 15, 2014

Ultraviolet (UV) Radiation

By Anonymous User

Invisible rays that are part of the energy that comes from the sun. UV radiation can burn the skin and cause skin cancer. UV radiation that reaches the earth's surface is made up of two types of rays, UVA and UVB rays. UVB rays are more likely than UVA rays to cause sunburn, but UVA rays pass further into the skin. Scientists have long thought that UVB radiation can cause skin cancer. They now know that UVA radiation also may add to skin damage that can lead to cancer. For this reason, skin specialists recommend that people use sunscreen that protect from both types of radiation.

Tags: Cancer Dictionary, U

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