9 years ago
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Marijuana Use May Lower Sperm Counts 'Quite a Lot'
Smoking marijuana more than once a week may lower men's sperm counts by about a third, according to a new study. Researchers found that the men in the study who smoked marijuana more than once a week had sperm counts that were 29 percent lower, on average, than those who did not smoke marijuana, or used the drug less frequently.
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http://www.livescience.com
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