The field of Public Health / Health Sciences is a multidisciplinary one, drawing on the knowledge, experience and the methods of different individual disciplines, such as the social sciences, psychology, economics, medicine, epidemiology, etc. Whereas each of these disciplines has its own specialist approach to health-related problems, the collaboration between the other disciplines gives rise to new perspectives, contributing to the process of interdisciplinary communication in the field of Public Health/Health Sciences. Studies do not concentrate on the individual person (as is the case in psychology or medicine, for instance), rather they are concerned more with population groups and the health system. Studies encompass the distribution of health conditions, of risks and resources in the population, the weighting of different influencing factors and ultimately the formulation of concrete contributions for the resolution of health-related problems and issues within the population.