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The observed effects on memory and learning, they said, showed long-term cannabis use caused "selective memory defects", but "of a very small magnitude". [85] A study by Johns Hopkins University School of Medicine found that heavy cannabis use is associated with decrements in neurocognitive performance even after 28 days of abstinence.
A lot of the data around marijuana use and mental health focuses on people who are heavy pot users, making it difficult to say for certain how sporadic marijuana use will affect people, Hillary ...
Over time, the marijuana gateway hypothesis has been studied more and more. In one published study, the use of marijuana was shown not a reliable gateway cause of illicit drug use. [67] However, social factors and environment influence drug use and abuse, making the gateway effects of cannabis different for those in differing social circumstances.
Cannabis use disorder is diagnosed when a person has two or more of such symptoms as craving weed, becoming tolerant to its effects, using more than intended, using marijuana even though it causes ...
Despite these shifts in reported use and policy, experts remain largely in the dark about the effects of occasional marijuana use, a result of contested federal restrictions on research. A larger ...
The January 2022 review looked at studies on over 43,000 people and found a negative impact of tetrahydrocannabinol or THC, the main psychoactive compound in cannabis, on the brain’s higher ...
Cannabis use disorder (CUD), also known as cannabis addiction or marijuana addiction, is a psychiatric disorder defined in the fifth revision of the Diagnostic and Statistical Manual of Mental Disorders and ICD-10 as the continued use of cannabis despite clinically significant impairment.
Nearly 90% of adults did not use marijuana, while more than 63% had never used tobacco. Among current marijuana users, nearly 74% reported smoking as the most common form of consumption; 4% were ...