This grant supports an initiative by the Harvard Center for Population and Development Studies (HCPDS) to launch an interdisciplinary, postdoctoral training program, the Sloan Fellowship on Aging and Work, which will support leading young scholars who wish to use multidisciplinary approaches to study the social and economic challenges posed by the aging work force. Led by center director Lisa Berkman, the HCPDS fellowship program will support three postdoctoral fellows for two-year terms beginning in September 2016. Fellows will be selected through a competitive application process, with candidates evaluated based on a number of criteria, including the quality of past work, the strength of their proposed research plans, and their potential to integrate questions, approaches, or analysis from two or more disciplines, including epidemiology, economics, psychology, neuroscience, and sociology.