Study explores how ultraviolet radiation can alter the microstructure of human skin
Received wisdom says that staying out in the sun too long can make your skin tougher over time. Think about the "leathery" complexions of farmers, road crews and others who work long hours outdoors, or someone who spends too much time in tanning booths, or too much time on the beach during the summer.
Abraham Ittycheri Zachary Lipsky Megan Craig Tracy Hookway National Science Foundation Thomasj Watson College Of Engineering
Source: news-medical.net