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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 ...
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 ...
Marijuana use is at an all-time high in the United States. In the past decade alone, Americans' reported marijuana smoking has more than doubled, increasing from 7% to 13% from 2013 to 2023 ...
Effects have included an increase in cannabis-related calls to the Oregon state poison center, [29] an increase in perception among youth that marijuana use is harmful, [29] a decrease in arrest rates for cannabis related offenses, [29] stores sold $250 million in cannabis products which resulted in $70 million in state tax revenue (higher than ...
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.
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.
D’Souza added that cannabis use can have serious impacts on the developing brain because of its effects on the endocannabinoid system, a complex signaling system in the brain that marijuana targets.
The LaGuardia Committee report was an official scientific report published in 1944 that questioned the prohibition of cannabis in the United States. [1] [2] The report contradicted claims by the U.S. Treasury Department that smoking marijuana deteriorates physical and mental health, assists in criminal behavior and juvenile delinquency, is physically addictive, and is a "gateway" drug to more ...