- Smoking marijuana more than once a week may lower men's sperm counts by about a third, according to a new study. http://www.livescience.com/52015-marijuana-lowers-sperm-counts.html?cmpid=514645 6 comments science
- Smoking marijuana more than once a week may lower men's sperm counts by about a third, according to a new study. http://www.livescience.com/52015-marijuana-lowers-sperm-counts.html?cmpid=514645 2151 comments science
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