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https://www.sciencedaily.com/releases/2018/11/181126105455.htm
Studies have repeatedly linked maternal smoking during pregnancy with reduced sperm counts in male offspring. Now a research team at Lund University in Sweden has discovered that, independently of nicotine exposure from the mother, men whose fathers smoked at the time of pregnancy had half as many sperm as those with non-smoking fathers.
The study was conducted on 104 Swedish men aged between 17 and 20. Once the researchers had adjusted for the mother's own exposure to nicotine, socioeconomic factors, and the sons' own smoking, men with fathers who smoked had a 41 per cent lower sperm concentration and 51 per cent fewer sperm than men with non-smoking fathers. The research team at Lund University is the first to have reported this finding.
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This could be a lead for smokable forms of male birth control.
Studies have repeatedly linked maternal smoking during pregnancy with reduced sperm counts in male offspring. Now a research team at Lund University in Sweden has discovered that, independently of nicotine exposure from the mother, men whose fathers smoked at the time of pregnancy had half as many sperm as those with non-smoking fathers.
The study was conducted on 104 Swedish men aged between 17 and 20. Once the researchers had adjusted for the mother's own exposure to nicotine, socioeconomic factors, and the sons' own smoking, men with fathers who smoked had a 41 per cent lower sperm concentration and 51 per cent fewer sperm than men with non-smoking fathers. The research team at Lund University is the first to have reported this finding.
======================================
This could be a lead for smokable forms of male birth control.