Kimberly Gray received her B.S. degree in behavioral neuroscience and a Ph.D. in epidemiology from the University of Pittsburgh, where as a graduate student she worked on a project examining the long-term effects of prenatal exposure to alcohol, marijuana, and tobacco. During a postdoctoral fellowship in the NIEHS Epidemiology Branch, she examined the long-term effects of polychlorinated biphenyl exposure during pregnancy and childhood development. In August 2001 she returned to NIEHS, where she now is now the NIEHS director for a nationwide collaborating network of “Children’s Centers” — the NIEHS and EPA Centers for Children’s Environmental Health & Disease Prevention Research.