Each of one hundred Chinese, similar in many of their major life experiences, was examined for four hours by an internist, a psychiatrist, a clinical psychologist, and an anthropologist. Some were seen also by a sociologist. Each individual was ranked according to the episodes of illness per year over a comparative twenty-year period. Twenty-five of the one hundred subjects accounted for half of all episodes of illness in the group. Two groups were compared psychologically: the ten most frequently ill and the ten least frequently ill. From this comparison it is concluded that the actual life situations encountered are less important than the attitudes with which these situations are perceived. The more