Dr. Nancy Segal

Professor of Psychology and twin researcher

Dr. Nancy Segal is an American psychologist and researcher who specializes in twin studies. She is a Professor of Psychology at California State University, Fullerton, and is the director of the Twin Studies center. Segal has written extensively on the topic of twins and has appeared on various TV shows, including "The Today Show" and "Good Morning America". She is known for her groundbreaking research on twin psycho...