The view among some scientists and doctors that frequent marijuana use may impair sexual performance has been challenged by new research from Stanford University which suggests that in fact, the opposite may be more likely. That means that routine cannabis use could add up to 20 more sexual encounters per year, said Eisenberg.
"For example, women who reported no marijuana use during the past 12 months reported having sex six times on average during the past four weeks compared with 7.1 times for women who reported daily use", Sun and Eisenberg wrote.
The investigators compiled answers to those questions for all years since 2002, when the survey first began collecting data on men as well as women. Women who did not use weed at all ad sex an average of 6 times monthly, while non-smoking men had sex 5.6 times a month.
The findings applied to people of all races, ages, education and income levels, religions, every health status, marital status and whether they had children.
It is estimated that around 180 million people around the world use marijuana, according to the latest edition United Nation's World Drug Report.
Marijuana is legal for medical or recreational adult use in 29 states and the District of Columbia, said spokesman Morgan Fox of the Marijuana Policy Project. "If anything, it's associated with increased coital frequency", said senior study author Michael Eisenberg, assistant professor of urology, according to the university press release. People who have more sex, on average, are happier and less stressed, they have lower blood pressure, and better cardiovascular health overall.
That amounts to roughly 20 percent higher frequency of sexual intercourse for people who consume marijuana.
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Some 24.5 percent of men and 14.5 percent of women in the analysis reported having used marijuana, and there was a positive association between the frequency of marijuana use and the frequency of sexual intercourse.
Survey participants were quizzed on how often they engaged in heterosexual intercourse over the last month, as well as how frequently they consumed cannabis in the a year ago.
However, others have also found in both animals and humans that the drug can stimulate activity in brain regions involved in sexual arousal and activity.
The trend also held up when the researchers accounted for survey respondents' use of other drugs, like cocaine and alcohol.
Interestingly, the frequency of sexual intercourse rose steadily with increasing marijuana use, which hints at a potentially active role for marijuana in fostering sexual activity.
He does, however, warn that the study shouldn't be misinterpreted as having a causal link.
"While the results are very interesting, it's premature to suggest that marijuana may have a medicinal use in the treatment of sexual disorders such as erectile dysfunction, premature ejaculation or orgasmic disorder", Vira said.