William R. Lovallo's research is concerned with relationships between states of stress, biological responses, and their implications for health. His current projects address cardiovascular and endocrine responses during mental stress and effects of caffeine and stress on persons at risk for hypertension. He completed his doctorate in biological psychology at the University of Oklahoma in 1978. Since that time, he has served as Director of the Behavioral Sciences Laboratories at the VA Medical Center and is Professor of Psychiatry and Behavioral Sciences at the University of Oklahoma Health Sciences Center in Oklahoma City. He has also served as Associate Director of the John D. and Catherine T. MacArthur Foundation's Research Network on Mind-Body Interactions. He has served on several advisory committees for the National Institutes of Health and the Veterans Administration.