Abstract
Stress and Life ChangeExcessive overtime work, previously associated with increased risk of coronary disease, has received further support as a risk factor in the last five years. Theorell and Rahe57 compared 62 patients with myocardial infarction in Stockholm with 109 healthy employees of a municipal agency and found that the patients had been doing much more overtime work but had lower responsibility and less supervisory activity (and hence, presumably, a greater amount of physical exertion) than the healthy controls. However, the difference in the institutional sources from which the two groups were drawn might account for many of these . . .