[Sexuality in the elderly--research results and its significance for life in institutions]

There are many methodological problems in current research on the sexual behavior of the elderly. As a consequence the results should more be considered as qualitative cues than as quantitative facts. For the main result (less speed and less intensity) several examples for both sexes are given. The elderly are sexually rather active. Forms of tenderness are more and more important and forms of genital activity lose their former importance. Several influencing factors on sexual behavior of the elderly are described (sex, marital status, health, harmony between the partners, importance of sexuality in the former life). An overview of some theories demonstrates the complexity of the causes of sexual behavior in old age. For the physician it is recommended to discuss possible consequences of medical treatments on sexual life with the patient and his or her partner. In institutions the privacy of the elderly should be respected.