Pollution of air can impair sperm quality, says poll
Pollution-related problems do not only cause respiratory complications. A survey published in the scientific journal Occupational & Environmental Medicine found that contact with pollutants can impair semen quality.
The survey was conducted between 2011 and 2014 with 6475 men aged 15 to 49 years and evaluated the semen quality of participants taking into account WHO guidelines, including sperm concentration, total motility and progressive and morphological motility.
Scientists have noted that there is a relationship between exposure to airborne particles and sperm activity. To give you an idea, every five grams of particles per cubic meter of air would be associated with a 1% reduction in the number of healthy sperm.
The study is not conclusive, so scientists have so far failed to explain why contact with pollutants could reduce sperm quality.
However, this is not the first time that science has found a link between pollution and male reproductive problems. In 2010, a study carried out by the Reproductive Toxicology and Andrology Unit of the Hospital das Clínicas of FMUSP, linked to the State Department of Health of São Paulo and coordinated by the urologist Jorge Hallak, found that pollution is one of the most serious modern causes of male infertility.
According to the study, those who breathe a lot of pollution showed higher concentration of free radicals in the blood, which causes a decrease in sperm quality. The numbers showed that of the 748 surveyed, 500 had some type of fertility change.
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