Many studies have corroborated the theory that weed has both physical and mental benefits. We’re at the point where using cannabis and psychedelic drugs like psilocybin for medical reasons is fairly common—in fact, the majority of states have legalized medical weed use. Keeping with the positive tradition, a new federally funded study suggests that weed users have “enhanced cognitive abilities” across multiple domains.
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Nature Portfolio published a pre-print of a study this month that analyzed brain imaging and cognitive data from 37,929 participants in the United Kingdom. The participants ranged from ages 44 to 81 and were split into cannabis users (at least one time using the plant) and non-users. Users were then split into light users (one-10 times) and heavy users (more than 10 times)—thus, the study’s threshold for “cannabis user” is a rather loose one.
The findings showed that the cannabis users in the pool consistently outperformed others on multiple cognitive tests that observed functional network connectivity (FNC), or how well the different parts of the brain work together. Tests included reaction time tests, numeric memory tests, trail-making tests, and more—notably, the results weren’t split by light and heavy, but rather general users and non-users.
Still, the results gave researchers optimism about the future of the plant in medicine.
According to the paper, the participants who used cannabis displayed characteristics typically associated with younger brains, implying that the plant could have a role in future neurodegenerative disease prevention.
“These findings suggest that cannabis use may be associated with a deceleration of neural aging processes and the preservation of cognitive function in older adults,” the paper says. “We speculate that cannabinoids and endocannabinoids may exert neuroprotective effects during aging by preserving an optimal balance between functional segregation and integration.
Many marijuana and psychedelic studies show similarly promising results, but are limited by small sample sizes. This study’s large scale gives it the potential to make a real difference in the cannabis field—both legally and medically.
In the introduction of the published paper, the researchers noted that marijuana consumption has grown massively in recent years, and so research like this is more accessible than ever. Thus, scientists can get a better grasp on the substance’s long-term effects, positive or negative.
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Big decisions are coming for weed on the federal level, and studies like these may change the course of the upcoming decisions. Even if it doesn’t, weed users may be able to find comfort in the fact that their choices may end up helping in the long run.