Dynamics of the parameters of population structure as a result of sociodemographic transformations
A study was performed in several urban and rural communities of Russia as well as in some rural areas of Soviet Central Asia. The main parameters of population structure were examined to demonstrate the "buffer" character of their dynamics under conditions of pronounced sociodemographic transformation. Despite significant sociodemographic transformations the structure of rural population is strongly influenced by the isolation factor. Social progress and advances in medicine and hygiene reduce the impact of natural selection. However the structure of natural selection is changes in such a way that it maintains its protective and stabilizing function. Therefore no accumulation of harmful genes occurs. It is concluded that an improvement in standards of living will not impair the quality of mankinds gene pool.