Over the past 14 years, the number of sperm in male semen has been reduced by almost 30%, say British scientists. In the course of the study, they analyzed 16 thousand. Of sperm samples taken in 1989-2002. The results of this study are relative, because so far scientists have not been able to calculate the exact "normal" number of spermatozoa in the sperm.

According to Siladitii Bhattacharya, consultant and lecturer at the University of Aberdeen (Scotland), from 1989 to 2002, the number of sperm in male sperm decreased from 87 million per milliliter to 62 million. An abnormal situation is one in which the number of spermatozoa per milliliter does not exceed 20 million - then a man can not conceive a child. The amount of 62 million is not critical in terms of men's ability to reproduce. However, the concern of scientists is the very fact of reducing the number of spermatozoa, which they can not yet explain, according to the Internet edition for girls and women from 14 to 35 years old Pannochka. Net According to Dr. Bhattacharya, global causes can be two: the negative impact of the environment (for example, the use of solvents in industry, high concentrations in the lead environment) and genetic factors. In other studies, possible reasons include an increase in estrogen content in water reserves, use of strong contraceptives by women and hormone therapy. Also in recent studies, it has been said about the negative impact on the sexual development of boys' synthetic diapers and diapers, as they increase the body temperature of infants in the scrotum area.

Medicus. En.

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