Hui Zheng is a professor of sociology at The Ohio State University and The University of Hong Kong. His research focuses on understanding the causes, heterogeneity, inequality, and trends of population health and aging. It encompasses two interconnected areas: social and policy determinants of health, and population process of aging and mortality. He has investigated health consequences of various social structures, institutions, and policies; the trends of socioeconomic and demographic disparities in health; trend and heterogeneity in aging, mortality, and life span; the impact of life course dynamics of obesity on mortality; and the role of selection in health production and aging process. Methodologically, he is interested in developing and evaluating statistical and demographic methods to investigate the interplay of social-epidemiological changes, population dynamics and population heterogeneity on the trends and disparities in health, mortality and life expectancy. Current projects investigate 1) the rising health challenges in the U.S.; 2) determinants and consequences of cognitive aging across the life course; and 3) nativity disparities in labor market, aging, and health. His work is supported by grants from CDC (National Center for Health Statistics) and NIH (NIA, NICHD), and has received awards from American Sociological Association and IPUMS.