The conceptual framework of this study is that various population groups have different vulnerabilities to disease, and that different levels of social psychological stress induced by different social stressors lead to differential rates of morbidity. (DM)

Concludes, both from a review of medical literature and from a laboratory experiment, that overloading roles can exert a harmful effect on the health of overloaded individuals and that all organizational roles exert their most harmful effect on those individuals who experience the lowest job satisfaction. (MK)