First published in 1982. Since the 1960s, there has been growing interest in and research on the adult years of the life cycle. Previously, developmental studies had focused on childhood and adolescence, in which an orderly relationship between age and growth was assumed. This volume looks at three periods of adulthood identified on the basis of chronological age: young adulthood, from 18 to 40; middle adulthood, from 40 to 65; and later adulthood, from 65 until death. The authors of the series volumes are behavioral scientists with considerable experience in the education of health care professionals. Most of them are also clinicians, and their varied experience enables them to present their topics in a readable fashion. The content of the texts presumes only a very basic knowledge of the behavioral sciences, and emphasis is placed on the practical implications of research findings for health care delivery.