Marijuana » One Hitters

Women could be more sensitive to THC than men, according to study


  • Canna Obscura, Shutterstock

A new study from Canadian researchers found that women experienced the same effects of cannabis as men with a lower dose of THC.

To conduct the study, researchers at the University of Toronto asked 91 cannabis users between 19 and 25 years old to smoke a joint, which was either 12.5% THC or a placebo. The subjects were then asked to complete cognitive tests.

The study found that women tended to smoke for the same length of time as men, but smoked less of the joint. Even though women smoked less of the joint and had lower levels on THC in their blood, no difference in the effects of the cannabis was detected or reported.

Lead author Justin Matheson, a Ph.D. candidate at the University of Toronto, and lead author of the study, told PsyPost that the study shows THC is more effective on women.

“We found that women smoked less of a cannabis joint, had lower levels of THC in blood, yet experienced the same acute effects as men,” he said. “So, I think the main take-away is that women may need a lower dose of THC to get to the same degree of intoxication as men.”

Matheson added that the study does not take into effect the role of societal expectations on gender.

“For example, there’s evidence that estrogen (a sex hormone) influences the metabolism of THC, which could explain some of the sex differences in the metabolism of THC we see,” he said. “But we also know that gender identity influences drug use behaviors, which could relate to why we saw that women smoked less of the cannabis joint.”

He says more research is needed.

Women and men tend to metabolize alcohol differently, with women more susceptible to the effects of alcohol than men.

It's a new era for marijuana in Michigan. Sign up for our weekly weed newsletter, delivered every Tuesday at 4:20 p.m.

We welcome readers to submit letters regarding articles and content in Detroit Metro Times. Letters should be a minimum of 150 words, refer to content that has appeared on Detroit Metro Times, and must include the writer's full name, address, and phone number for verification purposes. No attachments will be considered. Writers of letters selected for publication will be notified via email. Letters may be edited and shortened for space.

Email us at

Support Local Journalism.
Join the Detroit Metro Times Press Club

Local journalism is information. Information is power. And we believe everyone deserves access to accurate independent coverage of their community and state. Our readers helped us continue this coverage in 2020, and we are so grateful for the support.

Help us keep this coverage going in 2021. Whether it's a one-time acknowledgement of this article or an ongoing membership pledge, your support goes to local-based reporting from our small but mighty team.

Join the Metro Times Press Club for as little as $5 a month.