Dr. Bruno Halpern graduated and completed a fellowship in Internal Medicine and Endocrinology at the University of São Paulo. He also recieved a PhD in Sciences in University of São Paulo, studying melatonin and brown adipose tissue. Dr. Halpern is the current chief-director of the Obesity Centre of Hospital 9 de Julho, São Paulo Brazil. He also acts as the Associate Editor of the "Archives of Endocrinology and Metabolism," the official journal of the Brazilian Society of Endocrinology. Finally, Dr. Halpern serves as a member of the Department of Foreign Relations and Epidemiology and Prevention of the Brazilian Association of Obesity.