The Swiss Centre for Occupational and Environmental Health (SCOEH) conducts research on factors that contribute to a healthy workplace and environment, and shares its insights by consulting for governments and companies, and by educating workers, managers and university students. We see health as a broad concept that is more than just the absence of disease; instead, it is a state of physical, mental and social well-being, as defined by the World Health Organisation (WHO). (http://www.who.int/about/mission/).