The Health and Retirement Study (HRS) is a long-running study that examines middle-aged and older adults in the US, producing data that is used both domestically and internationally. As a panel survey, HRS follows approximately 20,000 U.S. adults, some of whom have participated in the study for 30 years, through the retirement and aging process.

Social Environment & Health (SEH), founded in 1962, is a leader in the development of theory and research on the role of psychosocial factors in the etiology and course of both mental and physical health and illness. SEH specializes in integrating knowledge from across multiple disciplines and using cutting-edge methods to characterize the social and environmental contexts in which people live their lives.