Aging has a powerful impact on the quality of relationships and sexual func
tioning. The psychological impact of aging after midlife is a particularly
timely topic given improved medical and psychological understanding of sexu
ality in both women and men, as well as more effective treatment for age-re
lated sexual dysfunctions. It is time to dispel the stereotype of the midli
fe relationship as the continuation of a traditional heterosexual marriage
with grown or almost grown children in order to more effectively address em
otional and sexual issues arising in relationships. Regardless of the lengt
h or nature of the relationship, however, its quality is enhanced by emotio
nal intimacy, autonomy without too much distance, an ability to manage stre
ss and distractions by external factors, and achieving a satisfying sexual
equilibrium. Perception of the quality of the primary relationship and sexu
ality is influenced by the other factors in a person's life. Thus, the rela
tionship must be examined and issues must be addressed taking these externa
l factors into consideration. Among the most powerful external factors is o
ne's occupation or avocation, as it tends to strongly influence one's sense
of identity, self-esteem, and self-worth in all areas of life. To understa
nd and treat effects of aging on sexuality, it is important to address the
three components of sexual desire: drive, beliefs/values, and motivation, a
s well as the sexual equilibrium within the primary relationship. It is als
o essential to understand how the physiological changes in male and female
sexual functioning affect desire and equilibrium. Other health-related chan
ges that occur with aging must be recognized and addressed, including the f
act that the oldest of old women will outlive their corresponding male coho
rt. Treatment implications for these issues are discussed.