Kathleen Mullan Harris is the James E. Haar Distinguished Professor of Sociology and Adjunct Professor of Public Policy. Her research focuses on social inequality and health with particular interests in health disparities, biodemography, social science genomics, and life course processes. Harris is Principal Investigators and Director of the National Longitudinal Study of Adolescent to Adult Health (Add Health), a longitudinal study of more than 20 thousand teens who are being followed into adulthood. Under Harris' leadership, the study has pioneered innovative study designs and integrative multidisciplinary research to understand social, environmental, behavioral, biological and genetic linkages in developmental and health trajectories across the early life course. She has been an advocate within the social science and population disciplines for bridging social and biomedical sciences to advance knowledge on the development of health disparities from both an inter- and intra-generational perspective to inform public health and social policy. Her publications appear in a wide range of disciplinary journals including demography, genetics, family, epidemiology, biology, public policy, survey methodology, medicine, and social and health behavior.