Individuals make choices in, and adjust to, a world of work that is often a moving target. Because work is so central to human functioning, and transitions in and out of work can have major mental health repercussions, the authors argue that applied psychologists in health services need to understand those transitions. This article focuses on the…

Presents concepts of life course, life cycle, life structure, and the adult development of the life structure in early and middle adulthood. Discusses six major issues that must be dealt with by every structural approach to adult development. (PS)