Abstract
Increasing longevity in most western industrial nations and its social, medical and also economic consequences have become a growing matter of public concern. Thus during the last 100 years in Germany the mean life expectancy has nearly doubled (Fig. 14.1). This also worldwide development is largely due to improved hygiene, reduction of newborn mortality and more effective therapy and prevention of acute diseases in adult age. With larger numbers of people reaching advanced age, health problems as well as social and psychological problems of older men play an increasingly important role in clinical medicine and in research. Not only is life expectancy increasing, but altered individual life planning and effective methods of contraception will continue to delay the timepoint of starting a family until later in life, when in any event female fertility is distinctly reduced.
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Rolf, C., Zitzmann, M., Nieschlag, E. (2010). The Aging Male and Late-Onset Hypogonadism. In: Nieschlag, E., Behre, H.M., Nieschlag, S. (eds) Andrology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-78355-8_14
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