A new study suggests that prolonged exposure to car exhaust can affect male fertility by lowering sperm quality.
Researchers at the University of Naples in Italy studied 85 men who worked at highway toll booths and found that their sperm counts were no different from other young and middle-aged men in the same area, but Sperm motility is relatively weakened, so their fertility is also reduced accordingly.
When men are exposed to car exhaust for 6 hours a day, the androgen levels in the body will not change, but the motility of sperm will decrease, thus affecting the ability to fertilize. About 1/3 of infertility is caused by abnormalities in the quantity and quality of the male\’s sperm. If a man\’s sperm count is less than 20 million milliliters, his fertility is extremely poor.
In this study, 85 staff members at the toll booths of the above-mentioned highways all underwent full physical examinations. Among them, 71 of the 71 people who were married had no children after marriage. This shows that men have long been working in high concentrations of nitric oxide, sulfur monoxide, carbon monoxide and lead in automobile exhaust environments. Carbon monoxide and lead are most likely to damage sperm quality. Researchers call for more in-depth research on this topic, andhealth workers should also pay attention to the negative impact of environmental pollution on human health.
This article is provided by Baidu Reading. It is excerpted from \”The Clear \”Conception\” Plan\” Author: Sun Jianqiu and Xie Yingbiao