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Marijuana and Erectile Dysfunction

In his research, Dr. Shamloul examined a 2010 study in the journal European Urology. This study reported that there were cannabinoid receptors in the penises of five men and six rhesus monkeys. Most of the receptors were found in the smooth muscle of the penis. It appeared that THC impaired the smooth muscle’s normal function.

This finding suggests that marijuana use could affect a man’s ability to have an erection, since the human penis is 70% to 80% smooth muscle.

The results could have implications for women as well.


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