Recent discoveries have revealed subtle but significant detrimental effects worldwide on the health of wildlife and humans by chemicals in our food, air, soil, and water. Many of these chemicals inhibit natural chemicals in our bodies that control our physiology and behavior, development, reproduction, obesity, and general health. David Norris, professor of integrative physiology, will discuss the implications on the health of wildlife, humans, and future generations. Wednesday, Sept. 26, 7 p.m., Louisville Public Library, 951 Spruce Street