Anna Zajacova is a Professor of Sociology at the University of Western Ontario in Canada, where she studies population health with a focus on health determinants, trends, and disparities, particularly among mid-life and older adults. She earned her PhD in Sociology and Demography from Princeton University. A central focus of her work involves using demographic analysis to examine the social roots and consequences of chronic pain in the U.S. and other populations. Her research has been supported by the U.S. National Institutes of Health and the Social Sciences and Humanities Research Council of Canada. To learn more, visit her website: annazajacova.com.