Dr. Zhenzhen Zhang is a medical epidemiologist whose research examines the effects of nutrition, diet, microbiome, and chronic disease outcomes. Her primary focus is on identifying various risk factors and cancer outcomes, with a particular interest in cancer prevention and investigating the molecular genetics and epigenetic modification mechanisms underlying these associations. Additionally, she has a strong interest in diet and microbiome research, and the life-course approach to cancer epidemiology. Dr. Zhang was a Building Interdisciplinary Research Careers in Women's Health (BIRCWH) scholar sponsored by the National Institutes of Health and a fellow of the National Cancer Institute's Transdisciplinary Research on Energetics and Cancer (TREC). Her current research program is centered around three key areas: 1) Aggressive Breast Cancer Research; 2) Microbiome and Nutrition Research; and 3) Collaborative  Population-based and Cancer-registry-based Research.