Predictors and characteristics of mental health among men at midlife: a 32-year longitudinal study.

In a prospective, 32-year longitudinal study of 87 young men originally selected for general health, it was found that good physical and mental health were maintained by most. Successful predictors of midlife mental health included satisfactory peer social adjustment, little or no angry behavior, and a mentor relationship in young adulthood. Overall findings suggest that mental health is closely associated with developing social relationships.