They push themselves with deadlines, and hate both delays and ambivalence. People with Type A personalities are often high-achieving " workaholics". The hypothesis describes Type A individuals as outgoing, ambitious, rigidly organized, highly status-conscious, impatient, anxious, proactive, and concerned with time management. It was originally called 'Type A Personality' by Friedman and Roseman, it has now been conceptualized as the Type A behavior pattern. Participants were asked to fill out a questionnaire, that asked questions like "Do you feel guilty if you use spare time to relax?" and "Do you generally move, walk, and eat rapidly?" Subsequent analysis indicated that although Type A personality is associated with the incidence of coronary heart disease, it does not seem to be a risk factor for mortality. The individuals enrolled in this study were followed well beyond the original time frame of the study. After an eight-and-a-half-year-long study of healthy men between the ages of 35 and 59, Friedman and Rosenman estimated that Type A behavior more than doubled the risk of coronary heart disease in otherwise healthy individuals. They credit their insight to an upholsterer who called to their attention the peculiar fact that the chairs in their waiting rooms were only worn out on the front edge of the seat. Type A personality behavior was first described as a potential risk factor for heart disease in the 1950s by cardiologists Meyer Friedman and Ray Rosenman. 2.3 Interactions between Type A and Type B.Nevertheless, this research had a significant effect on the development of the health psychology field, in which psychologists look at how an individual's mental state affects physical health. Following the results of further studies and considerable controversy about the role of the tobacco industry funding of early research in this area, some reject, either partially or completely, the link between Type A personality and coronary disease. The two cardiologists who developed this theory came to believe that Type A personalities had a greater chance of developing coronary heart disease. In this hypothesis, personalities that are more competitive, highly organized, ambitious, impatient, highly aware of time management, or aggressive are labeled Type A, while more relaxed, less "neurotic", "frantic", "receptive" personalities are labeled Type B. Type A and Type B personality hypothesis describes two contrasting personality types.
Not to be confused with Cluster A personality disorder or Cluster B personality disorder.
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