Study Finds Men Feel Stronger Cannabis Effects

A UCLA randomized trial found occasional male cannabis users reported greater high, sedation and impairment than other participants.

Updated on Nov. 6, 2026 in Men’s Health

Study Finds Men Feel Stronger Cannabis Effects

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Do you think cannabis affects men and women differently enough to matter for users?

A UCLA study published in Neuropsychopharmacology found that men who used cannabis occasionally reported feeling more high, sedated and impaired than other participants. Frequent users of both genders responded to cannabis in similar ways.

Why it matters

Much prior understanding of gender differences in cannabis effects came from animal research and pooled human data, so this controlled comparison offers more direct evidence. The findings suggest that gender and frequency of use both shape how people experience the drug.

The study was a randomized controlled trial in which participants smoked placebo, lower-THC and higher-THC cannabis in separate sessions without knowing which they received. Blood THC levels did not explain the differences, and the authors say larger studies are needed to confirm whether women build tolerance with less use than men.

The players

UCLA

The University of California, Los Angeles is a public research university whose researchers conducted the study on gender differences in cannabis effects.

The details

Participants smoked placebo, lower-THC and higher-THC cannabis in three sessions without knowing which they had received. Women were not using hormonal birth control and were tested during the same phase of their menstrual cycle, and men who used cannabis frequently had the highest THC levels yet felt fewer effects than occasional male users.

Study published in Neuropsychopharmacology in 2026.

Health Landscape

Much of the earlier understanding of gender differences in cannabis effects came from animal research and from human studies that pooled data across separate trials. This randomized design, which controls for hormones while testing gender and frequency of use together, offers a more direct comparison than those earlier approaches.

Readers who use cannabis may find that occasional use affects men more intensely, with stronger sedation, impairment and heart-rate changes than frequent use would suggest. The findings do not yet translate into dosing advice, but they highlight that experience with the drug can differ by gender and usage pattern.

The takeaway

Cannabis effects are not uniform, and frequency of use and gender both appear to shape how strongly people feel them. Users should recognize that occasional use may produce a more intense experience than habitual use, especially for men.