Most of Dr. Weinstein's work explores the behavioral and biological dimensions of reproduction and aging. Her most recent research is in the emerging area of biodemography. She is currently working on two research projects that are funded by the NIH. The first explores the reciprocal relations among stress, health, and the social environment among the elderly. The second is a follow-up study of midlife in the United States. Both studies include a wide range of self-reported data and biomarkers. Her most recent book is Biosocial Surveys, an edited volume that examines what we have learned -- and hope to learn -- from the integration of biomarkers into social science surveys. She has been at Georgetown University since 1987.