wellness initiatives. Mr. Ruff is just completing his term as president of the International Life Sciences Institute and sits on the boards of the Institute of Food Technologists (IFT) and the Joffrey Ballet. He is past chair of the Food Processors Association, past chair of the IFT Foundation, and a fellow of the Institute of Food Science and Technology in the United Kingdom. Mr. Ruff received his M.A. in biochemistry and B.A. in natural science from Cambridge University in the United Kingdom.

GLORIAN SORENSON, Ph.D., M.P.H., is professor in the Department of Society, Human Development, and Health at the Harvard School of Public Health in Boston and director of the Center for Community-Based Research at the Dana-Farber Cancer Institute. She also directs the Dana-Farber’s Office for Faculty Development. Dr. Sorensen’s research interests are in cancer prevention and control, worksite and community intervention research, and tobacco control and other health behaviors, in various multiethnic community settings. She has been principal investigator of multiple National Cancer Institute-funded projects focusing on cancer control in working class multiethnic populations. Her past IOM-NAS committee service includes the Committee to Assess Worksite Preventive Health Program Needs of NASA Employees (2004–2005), Committee on the Health and Safety Needs of Older Workers (2001–2005), Committee for Behavior Change in the 21st Century: Improving the Health of Diverse Populations (2000–2002), and Committee on Capitalizing on Social Science and Behavioral Research to Improve the Public’s Health (1999–2000). She is the principal investigator for the Harvard School of Public Health Center for Work, Health, and Well-being and for the Massachusetts Cancer Prevention Community Research Network. Dr. Sorensen was recently awarded a research grant from the National Cancer Institute to study tobacco control among teachers in India, building on collaborations established through a Fulbright Award (2003–2004). She was a member of the National Cancer Institute’s (NCI’s) National 5-A-Day for Better Health External Advisory Group and a member of the NIH study section on Community Prevention and Control; she recently chaired several study sections for the National Institute for Occupational Safety and Health. In addition, Dr. Sorensen is a member of the editorial board for the journal Cancer Epidemiology, Biomarkers, and Prevention, and she formerly served on the editorial boards of the American Journal of Health Promotion and the Journal of Health and Social Behavior. She received her Ph.D. degree from the University of Minnesota.

ELIZABETH A. YETLEY, Ph.D., is a retired government scientist. Her career spans more than 28 years of government service including 24 years at the Food and Drug Administration culminating with her appointment as