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Study: Smoking Reduces Fertility in Men
Nicotine damages sperm cells and can affect male fertility. Researchers from Saarland University found cotinine, a breakdown product of nicotine, in the sperm of smokers in a significantly higher amount than in non-smokers.
Scientists at Saarland University have been able to demonstrate that sperm from smokers is less mobile and less viable than among non-smokers. In addition, certain protein molecules that are responsible for the packaging and stability of genetic information in sperm look significantly different in smokers. This can lead to the genetic material in the sperm cells being damaged and the desire to have children not being fulfilled as a result. (pm)