Two fundamental biological mechanisms lead to the fact that the gene pool of the human population is gradually deteriorating, said Sputnik France the famous popularizer of science, Doctor of Biological Sciences and expert in the theory of evolution Alexander Markov.

The first reason is the weakening of the selection against harmful mutations.

"Previously, people with diseases, with very poor health, mostly died, and even in childhood, in infancy, and there was a" rejection "of adverse mutations. And since the end of the XIX and the first half of the XX century, a whole revolution in the field of social security, the development of medicine, plus the solution to the problem of hunger, disability pensions, rehabilitation programs, antibiotics, and so on, and infant mortality in developed countries eventually decreased to very close to zero.

That is, all survive, and, accordingly, the selection is almost not working, "- explained Markov.

The scientist noted that, on average, newborns now register about 70 new mutations that their parents did not have. Among them there are neutral changes, but there are always several mutations that can reduce the quality of the organism's operation, spoiling its systems or subsystems (musculature, skeleton, etc.), and - most importantly - worsen brain work.

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