Professor David Levitsky, Ph.D., has dedicated nearly 50 years to the research and teaching of the mechanisms behind the regulation of body weight, specifically the role played by our environment. Levitsky is passionate about teaching and preparing students to seek solutions to nutrition problems using a holistic, multifaceted perspective: one that demands not only an understanding of the biology of the human body, but also of the interrelated social science behind how people behave. He has been teaching introductory nutrition courses for at least two decades and has provided lectures on the prevention of weight gain to various Cornell clubs. Levitsky came to Cornell University for his post-doctoral work in 1968, became a full professor in 1986, and is currently the Stephen H. Weiss Presidential Fellow in the Division of Nutritional Sciences. He received his undergraduate, graduate, and doctoral degrees from Rutgers University.