Esther Guggenheimer-Furman earned a PhD in life sciences and has specialized in physiology. She has taught courses in human anatomy, physiology, pathology, endocrinology, the senses, child developm...view moreEsther Guggenheimer-Furman earned a PhD in life sciences and has specialized in physiology. She has taught courses in human anatomy, physiology, pathology, endocrinology, the senses, child development, and more. She has written two schoolbooks on the human body for high school students and a book on nutrition for junior high school students.view less