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Marijuana impacts young people's mental development, their ability to concentrate in school, and their motivation and initiative to reach goals. And marijuana affects people of all ages: Harvard University researchers report that the risk of a heart attack is five times higher than usual in the hour after smoking marijuana.
A dried cannabis flower. The short-term effects of cannabis are caused by many chemical compounds in the cannabis plant, including 113 [clarification needed] different cannabinoids, such as tetrahydrocannabinol (THC), and 120 terpenes, [1] which allow its drug to have various psychological and physiological effects on the human body.
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 history of cannabis and its usage by humans dates back to at least the third millennium BC in written history, and possibly as far back as the Pre-Pottery Neolithic B (8800–6500 BCE) based on archaeological evidence. For millennia, the plant has been valued for its use for fiber and rope, as food and medicine, and for its psychoactive ...
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 (DSM-5) and ICD-10 as the continued use of cannabis despite clinically significant impairment. [2][3]
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 ...
Media coverage of marijuana has progressed in recent history. Attention and coverage of the drug began in the 1930s when fabricated horror stories of its effects were used to scare the public and influence public opinion. [51] To push the negative connotations of marijuana even more, films such as Marihuana (1936) and Reefer Madness (1937) were ...
The psychoactive component of cannabis, tetrahydrocannabinol (THC) is not effective in treating emotion-regulation and anxiety-related symptoms. [20] Conversely, THC has been empirically related to an increase anxiety symptoms through impacts on neurological areas impacting serotonin, noradrenalin, GABA and glutamate.