Lynne C. Messer is a social, environmental and reproductive/perinatal epidemiologist whose substantive work focuses on the social-structural determinants of maternal and child health disparities within the Developmental Origins of Health and Disease framework. Methodologically, her work entails better-defining neighborhood environments, developing environmental exposure measures for a variety of health outcomes, and social network analysis. Her global work addresses the health of orphans and abandoned children living in family- or institution-based settings. She is also interested in the psychosocial mechanisms through which socio-environmental exposures result in health disparities for women and children. She is an assistant professor in the School of Community Health in the College of Urban and Public Affairs at Portland State University and an affiliate assistant professor at Oregon Health and Sciences University. She earned her Ph.D. from the Epidemiology Department (2005) and her M.P.H. from the Department of Health Behavior and Health Education (1995) at the University of North Carolina.