“We were surprised to see the positive association between users,” Eisenberg told CNN. “This was across the board: marital status, race, none of that mattered.”
The study focused on heterosexual sex and did not explain why there might be a connection between sex and marijuana, CNN reported.
Eisenberg said past research on human and rodent models has shown that marijuana use may generally increase arousal. However, studies have also shown that too much marijuana use can decrease sperm count, and while men may want to have sex more, orgasm may be a challenge.
"It can have a different impact on different people," Joseph Palamar, an associate professor in the Department of Population Health at New York University, told CNN. Palamar has no connection with the current study, but called it "a cool epidemiological paper" that "did the best it could with the data."
Palamar did say the study had limitations.
“It's unclear from the data if people had marijuana in their system before or during sex,” Palamar told CNN.
Eisenberg told CNN that if a patient asks whether frequent marijuana use is getting in the way of his or her sex life, he will tell them that “it may not be the culprit.”