[Selected endocrinological problems in mature and elderly men].

Aging of human organism is usually related with a decline of gonadal activity. Age associated reproductive and hormonal changes in men are not as dramatic and clear as in women. During the process of physiological aging three hormonal systems show the decrease in circulating hormone concentrations: estrogen (menopause), testosterone (andropause) dehydroepiandrosterone sulfate (adrenopause) growth hormone and it's tissue mediator IGH-I (somatopause). Emphasizing the probable causes of hypoandrogenism consequences of the above hormonal shortage have been presented. Additionally some factors participating in the process of human organism aging have been discussed.