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Study: Frequent Marijuana Users Get a Boost in Bedroom Activity

A study by the Stanford University School of Medicine hints at a causal link between regular marijuana use and an increase in the frequency of having sex, despite previous concerns it might impair sexual performance. (Image credit: Brenna Daugherty/Flickr)

A study by the Stanford University School of Medicine hints at a causal link between regular marijuana use and an increase in the frequency of having sex, despite previous concerns it might impair sexual performance.

“Frequent marijuana use doesn’t seem to impair sexual motivation or performance. If anything, it’s associated with increased coital frequency,” said the study’s senior author, Michael Eisenberg, MD, assistant professor of urology.

The first of its kind to examine marijuana use and its impact on sexual intercourse frequency, the study shows a positive correlation between the two, though researchers suggest there may in fact be a causal link at play:

The study does not establish a causal connection between marijuana use and sexual activity, Eisenberg noted. But the results hint at it, he added. “The overall trend we saw applied to people of both sexes and all races, ages, education levels, income groups and religions, every health status, whether they were married or single and whether or not they had kids.”

In addition, the trend remained even after accounting for subjects’ use of other drugs, such as cocaine or alcohol. This, Eisenberg said, suggests that marijuana’s positive correlation with sexual activity doesn’t merely reflect some general tendency of less-inhibited types, who may be more inclined to use drugs, to also be more likely to have sex. In addition, coital frequency rose steadily with increasing marijuana use, a dose-dependent relationship supporting a possible active role for marijuana in fostering sexual activity.

The team's findings, which followed the analysis of more than 50,000 American adults, were published this month in the Journal of Sexual Medicine and come with a note of warning:

Eisenberg cautioned, the study shouldn’t be misinterpreted as having proven a causal link. “It doesn’t say if you smoke more marijuana, you’ll have more sex,” he said.

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