Does Weed Make You More Creative? What Studies Show (2026)

By James Buddsey · Updated October 16, 2026

Weed does not reliably make you more creative: controlled studies find that cannabis mostly makes people feel more creative, while their measurable creative output stays the same or, at high doses, gets worse. The one consistent exception is a small boost in idea generation for people who score low on creativity to begin with. The fact that cannabis users test as more creative appears to come from personality, not the drug.

The link between cannabis and creative work is one of the oldest stories in the culture, from jazz clubs in the 1930s to recording studios in the 1960s. In 2011 we wrote about an early lab finding on “hyper-priming” that seemed to support it. Since then, researchers have run actual experiments, including randomized trials with measured doses. Here is what they found.

Evidence at a Glance

How Scientists Measure Creativity

Creativity research usually splits the skill into two parts:

• Divergent thinking: producing many different ideas, such as listing every possible use for a brick. It is scored for number, variety and originality.
• Convergent thinking: finding one correct answer that links ideas, such as the word that connects “cottage,” “swiss” and “cake” (cheese).

Verbal fluency tasks, where people name as many words in a category as they can in a minute, are also used as a rough stand-in for idea generation. None of these capture everything about writing a song or solving a design problem, which is one reason the debate continues.

What the Controlled Trials Show

High THC hurt idea generation

The cleanest test came from Leiden University in the Netherlands. Kowal and colleagues gave 54 regular cannabis users vaporized cannabis containing either 5.5 mg THC, 22 mg THC or placebo, in a randomized, double-blind design. The high-dose group did significantly worse on a divergent thinking task than both the low-dose and placebo groups. The low dose made no difference either way (Psychopharmacology, 2015).

Feeling creative is not the same as being creative

In 2022, management researchers Heng, Yam and Christopher Barnes of the University of Washington’s Foster School of Business published two experiments that randomly assigned adults to use cannabis or abstain before a creativity task. Cannabis made people more jovial, and that good mood led them to rate their own ideas and other people’s ideas as more creative. Their actual creativity, as judged on the task, did not improve (Journal of Applied Psychology, 2023). That gap between perception and output may explain why so many people are convinced weed helps.

Why Cannabis Users Score Higher Anyway

If the drug does not boost creativity, why do surveys keep finding that users are more creative? Washington State University psychologists Emily LaFrance and Carrie Cuttler tested 412 cannabis users, all sober at the time, and 309 non-users. Users rated themselves as more creative and did better on a convergent thinking test. But once the researchers accounted for openness to experience, a personality trait that covers curiosity, imagination and interest in new things, the difference disappeared (Consciousness and Cognition, 2017). In plain terms, curious, open people are both more likely to try cannabis and more likely to be creative. The weed is a marker, not the cause.

The One Group That Seems to Benefit

A University College London team tested 160 cannabis users twice, once sober and once after smoking their own cannabis. People who scored lowest on creativity when sober improved their verbal fluency when high, up to the level of the most creative group. People who were already highly creative did not gain anything (Schafer et al., 2012). A separate 2014 study from Indiana found the same pattern: cannabis use was linked to divergent thinking only in people low in creativity, which the authors described as a possible ceiling effect (Minor et al., 2014). Both were naturalistic, without controlled doses, so the finding is suggestive rather than settled.

What “Hyper-Priming” Means

Our original 2011 article leaned on a UCL study of semantic priming, the way one word speeds up recognition of related words. Celia Morgan and colleagues found that cannabis users showed stronger automatic priming while intoxicated, and some hyper-priming even when sober (Psychiatry Research, 2010). Looser associations sound like a recipe for creative leaps. But the authors studied it as a possible contributor to the psychosis-like effects of cannabis, since the same intoxicated sessions raised schizotypal symptoms. Loose associations can produce a fresh idea, or they can produce a train of thought that goes nowhere. The later trials suggest the second is at least as common.

Risks and Side Effects

• Memory and attention. THC acutely impairs short-term memory, attention and learning, according to NIDA. That can undercut the follow-through that creative work needs.
• Dose matters. The Leiden trial found harm at high doses and nothing at low ones. Today’s flower and concentrates make high doses easy to reach.
• Psychosis risk. The same looser thinking is linked to psychotic symptoms in vulnerable people. See our review of weed and schizophrenia.
• Dependence. Relying on cannabis to start every project can feed regular heavy use. Our guide on whether marijuana is addictive covers the warning signs.

If you use cannabis for creative work, the evidence points to a low dose at most, and to judging your ideas again the next day when sober. If you take medication or have a history of anxiety or psychosis, talk to a doctor before using cannabis.

For more on how THC affects thinking, read how THC affects the brain and whether marijuana lowers IQ, or browse our cannabis research section.

Weed and Creativity FAQ

For adults 21+ in legal states. General information, not medical advice. Talk to a doctor before using cannabis for a health condition.