Dr. John Eyles is a Distinguished University Professor at McMaster. After receiving his Ph.D. in Science and working in the University of London, he came to McMaster in 1988. Based in Geography and Earth Sciences, he holds appointments in Clinical Epidemiology and Biostatistics, Sociology and the Centre for Health Economics and Policy analysis. His main research interests lie in environmental influences on human health and access to health care resources. He has published widely in these areas. He has served on several advisory committees at the local, provincial and national levels, primarily with the role of science in public policy. He has recently begun (again) working internationally in South Africa and India.