Wednesday, January 17, 2007

Polluted air can damage sperm

[BioNews, London] Air pollution can damage sperm, reducing the chances of conception and raising the risk of miscarriage, say researchers based in the Czech Republic. The study, published in the journal Human Reproduction, also shows that a man's sperm quality will improve again if pollution levels drop. The findings show that the effects of air pollution on sperm are temporary, suggesting that it affects mature sperm late in their development, say the scientists.

The team studied men living in Teplice, a town in the Czech Republic that has high levels of air pollution during the winter months. They monitored 35 men for two years, and found that their sperm quality deteriorated during the winter, and improved significantly during the months when air quality improved.

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