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Somatic effects. Bloodshot eye. Some of the short-term physical effects of cannabis use include increased heart rate, dry mouth, reddening of the eyes (congestion of the conjunctival blood vessels ), a reduction in intra-ocular pressure, muscle relaxation, and a sensation of cold or hot hands and feet. [ 53]
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 users have shown decreased reactivity to dopamine, suggesting a possible link to a dampening of the reward system of the brain and an increase in negative emotion and addiction severity. [11] Cannabis users can develop tolerance to the effects of THC. Tolerance to the behavioral and psychological effects of THC has been demonstrated in ...
A cloud of marijuana smoke rises as a clock hits 4:20 p.m. during the Mile High 420 Festival in Denver on "weed day" in 2022. - Patrick T. Fallon/AFP/Getty Images/File
Marijuana's official designation as a Schedule 1 drug — something with "no accepted medical ... 11 key findings from one of the most comprehensive reports ever on the health effects of marijuana.
A 2020 study found that junk food sales increased between 3.2 and 4.5 percent in states that had legalized cannabis. [5] A 2022 study found that legalization had led to a 20% increase in use of cannabis in the US. [6] Pharmaceutical companies had lower returns. [7] Moreover, legalization leads to a decreased perception of cannabis use as "risky ...
There are plenty of studies detailing the negative effects of marijuana as well. Only now, science is suggesting marijuana isn't all bad as might have been previously believed.
Classification. The National Institute on Drug Abuse defines medical cannabis as "using the whole, unprocessed marijuana plant or its basic extracts to treat symptoms of illness and other conditions". [ 14] A cannabis plant includes more than 400 different chemicals, of which about 70 are cannabinoids. [ 15]