Smoking During Pregnancy Affects Sons' Sperm Count (old news - 04:35PM Monday Jun 09 2003)
Sons of mothers who smoked more than 10 cigarettes a day during pregnancy have lower sperm counts than sons whose mothers did not smoke, according to a new study from Denmark.
In the study, sons of smokers also tended to have lower levels of a hormone that has been linked to sperm production and to have sperm that was less dense than average, researchers report.
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