Deirdre Tobias is a recently appointed faculty member of the Harvard Medical School and epidemiologist in the Division of Preventive Medicine at the Brigham and Women’s Hospital in Boston, MA. Dr. Tobias received her doctorate in both nutrition and epidemiology from the Harvard School of Public Health. Her primary research interests include identifying lifestyle risk factors for obesity-related chronic diseases, including type 2 diabetes and gestational diabetes (pregnancy diabetes). Lifestyle factors of particular interest to her include body weight and weight gain, physical activity, and dietary patterns, such as the Mediterranean Diet and the Alternative Healthy Eating Index. She also recently expanded her work to include breast cancer and other obesity-related cancers. Dr. Her research predominantly utilizes data from large-scale observational cohorts, including the Nurses’ Health Study and the Health Professionals Follow-up Study, which follows participants over several decades to regularly assess their diet, lifestyle habits and health outcomes. Tobias’ research has been published in leading scientific journals, including the New England Journal of Medicine, and has been recognized with numerous awards. Deirdre received the Trudy Bush Fellowship for Cardiovascular Disease Research in Women’s Health from the American Heart Association as a doctoral student, and was a recipient of Harvard’s Pritzker Obesity Fellowship. She looks forward to a rewarding career in academic research and hopes to continue contributing to our understanding of the roles that nutrition and lifestyle play in both perpetuating and reversing the obesity and diabetes epidemics.