At the recent Guze Symposium on Alcoholism, (from left) Andrew Heath, D.Phil., director of the Midwest Alcoholism Research Center and the Spencer T. Olin Professor of Psychology in Psychiatry; Ting-Kai Li, M.D., director of the National Institute on Alcohol Abuse and Alcoholism; and Charles F. Zorumski, M.D., the Samuel B. Guze Professor and head of psychiatry, discuss the latest research in genetic and environmental factors that predispose some people to become alcoholics.