[Trends in modern international gerontological research. Experimental aspects].

In a personal statement the author takes the view that gerontology and geriatrics deal with the same fundamental biological phenomenon, namely loss of adaptability and of the capacity to maintain the parameters of homeostasis. Two focal points of recent research in gerontology are cell cultures and the central nervous system. Work with cell cultures has so far been unexpectedly disappointing as far as basic understanding of the ageing process in vivo is concerned. Biochemical, morphological, physiological and pharmacological investigations into the ageing brain have on the other hand provided a wealth of new data which promise major insights into basic mechanisms of the ageing process. Aim of all gerontologocal research must be an "old age worth living" rather than a speculative search for a prolongation of lifespan.