The mortality of 2159 female nurses (all registered nurses in Iceland between 1920-79) was compared with that of the general female population. A long-lasting healthy worker effect was found in the cohort. A moderate excess of suicide was observed. It was concluded that nurses, primarly those employed for long periods, enjoy the benefits of their initial good health. The moderate excess of suicide could be associated with stress & frustration, which the nurses relate to their work environment.