Premature aging (or photoaging) is characterized by wrinkles, age spots, sagging skin and leathery skin. Photoaging is primarily due to the damage of UV radiation exposure from the sun over time.1 The effects of photoaging depend on the degree of UV radiation exposure and the skin pigment.2 Skin aging caused by UV rays can be avoided by protecting your skin from the sun.
For more info on photoaging, visit: http://www.dermatology.ca.
1. Gary J. Fisher, Ph.D., ZengQuan Wang, Ph.D., Subhash C. Datta, Ph.D., James Varani, Ph.D., Sewon Kang, M.D., and John J. Voorhees, M.D. Pathophysiology of premature skin aging induced by ultraviolet light. N Engl J Med 1997; 337: 1419-1429.
2. Fisher G, Kang S, Varani J, Bata-Csorgo Z, Wan Y. Datta S, Voorhees J. Mechanisms of Photoaging and Chronological Skin Aging Arch Dermatol. 2002;138(11):1462-1470.