It did not matter whether structured interviews or questionnaires were used to assess Type A behavior. Myrtek (2007) also warns that the existence of the concept itself can be dangerous because it provides patients an “external causal attribution” and relieves them of the responsibility for behavior change. The Type A concept also gives false benefit to physicians when they work with CHD patients who lack the usual risk factors (smoking, poor diet, lack of exercise). Blaming Type A behavior is easier than admitting that the causes of CHD sometimes are unknown.