World population is increasing--slowly. But world population is aging--rapidly. Social epidemiologist Lisa Berkman walks us through changes in global population demographics and the challenges that population growth--and aging--pose to public health.

Lisa Berkman is a social epidemiologist whose work focuses extensively on social influences on health outcomes. Her research has been oriented towards under- standing social inequalities in health and aging related to socioeconomic status, different racial and ethnic groups, and social networks, support and social isolation. She is the Thomas D. Cabot Professor of Public Policy, Epidemiology and Population and Global Health at the Harvard T. H. Chan School of Public Health and the Director of the Harvard Center for Population and Development Studies.

This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at http://ted.com/tedx