Rolf Ekman gained his BSc and MD from Uppsala University, and his PhD from Lund University. In 1991, he was appointed Professor of Neurochemistry at G?org University, a post he holds today. Professor Ekman is a member of the International Society of Neurochemistry, the Society for Neuroscience, The New York Academy of Sciences, ISPNE and ECNP, and has been on the advisory board of Peptides since 1991. He has won both the Smith, Klein & French Research Award as well as the Boehinger Ingelheim Research Award, and has well over 300 publications to his name.

Bengt B. Arnetz received his BSc, MD, and PhD from the Karolinska Institute, Stockholm, Sweden, where he became associate professor of psychophysiology in 1986. He has also worked as a postgraduate fellow at Harvard School of Public Health, Boston, USA, and as senior occupational health advisor to the Boston Police Department, before joining Exxon Biomedical Sciences as section head of occupational health research. He was then made associate professor/unit head of the occupational health section at the National Institute for Psychosocial Factors and Health, Stockholm before joining Uppsala Academic Hospital, where he is currently professor and head of social medicine. Professor Arnetz is a member of several societies, including the Swedish Medical Association, the American Public Health Association, and the American College of Occupational and Environmental Medicine.