William R. Lovallo (PhD, biological psychology, University of Oklahoma, 1978) conducts research on relationships between stress, biological responses, and their implications for health. His current projects address cardiovascular and endocrine responses during mental stress and effects on persons at risk for alcoholism and other addictions. He has served as director of the Behavioral Sciences Laboratories and as senior research career scientist at the VA Medical Center and is professor of psychiatry and behavioral sciences at the University of Oklahoma Health Sciences Center in Oklahoma City. Lovallo has also served as associate director of the John D. and Catherine T. MacArthur Foundation's Research Network on Mind-Body Interactions. He is on advisory committees for the National Institutes of Health and the Veterans Administration.