The recognized association between Type A behavior and coronary heart disease has prompted efforts to alter the behavior's deleterious components in both individuals who have experienced myocardial infarction and those who are at risk for that disease. Utilizing concepts from psychology, sociology, history, and other disciplines and material from scholarly and popular literature, this paper suggests that instead of singularly concentrating on components at the level of the individual, it is important to view Type A behavior from an ecological perspective, with attention directed at the interpersonal, institutional, and cultural environments of individuals. This perspective will enhance understanding of Type A behavior and possibly stimulate interventions at the primary as well as secondary and tertiary prevention levels.