First 80 words of the document:
were asked for personality characteristics by
interviews and observations.
Of them had CHD (coronary heart disease) During
start of experiment.
8 Years later people developed CHD and
of these were classed as type A personality.
These results were found even when extraneous
variables of weight and smoking were taken
Type A personality seem to be
higher risk of stress related illness e.g. CHD.