Built Environment and Health (BEH) Research Group is an interdisciplinary program of research at Columbia University. Led by epidemiologist Andrew Rundle, BEH uses spatial data to examine the impact of the built environment, including land use, public transit, and housing on physical activity, diet, obesity, and other aspects of health. The group has investigators from public health, social science, and urban planning with a research staff based at the Institute of Social and Economic Research and Policy (ISERP).