Development continues throughout the life span. This basic precept of the life-span perspective apparently has not penetrated the discipline judging from the undergraduate psychology curriculum. In consequence of this missing concept, what often passes for a knowledge base on human behavior is, in actuality, an age-specific representation. Courses on the psychology of gender are no exception. Most textbooks designed for these courses rarely consider how gender issues are played out in later life. Issues typically targeted are gender development, gender stereotypes, social relationships, sexuality, school, work and careers, health, and psychopathology and its treatment. Most of these topics are relevant to older adults. Without consideration of gender, a distorted picture of aging results. Because of gender differences in life expectancy and morbidity, for instance, statistics combining men and women describe neither. Furthermore, the stakes of ignoring gender in older women's health and financial well-being are extremely high. In this chapter, several illustrations are provided in the field of the psychology of aging that should help students appreciate the importance of considering older adults in their understanding of the psychology of gender.