The concurrent relationship of the Structured Interview (SI) global and component Type A behavior measures were tested to levels of chronic and acute sympathetic nervous system activity, as assessed by platelet and plasma catecholamines, heart rate, blood pressure, and pupil size. The correlations among heart rate, pupil size, blood pressure, and the plasma and platelet catecholamine measures were determined as were the relationships with reported global health, chronic disease, and functional disability levels. The five-year predictability was tested of reported global health, chronic disease, and functional disability from measures of global and component Type A behavior.