Both UVA and UVB rays can damage your skin, just in different ways. One causes premature aging, the other is more prone to causing sunburn, DNA damage, and skin cancer.

Ultraviolet rays from the sun can age your skin, or worse, if you are not careful. Credit...Justin J Wee for The New York Times Supported by By Melinda Wenner Moyer Q: Is getting a tan just as bad ...

The sun’s rays cause the majority of skin changes as you grow older. Here’s how sunscreen helps prevent the damage. By Dana G. Smith Have you ever looked at the skin on the buttocks of a 90 ...