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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, and 120 terpenes, [1] which allow its drug to have various psychological and physiological effects on the human body.
A lot of the data around marijuana use and mental health ... between cannabis use and later negative effects.” ... people with a personal history of schizophrenia or other psychotic disorder ...
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.
Psychosis, cannabis hyperemesis syndrome, and lung damage are uncommon, yet dangerous, reactions after ingesting or smoking cannabis.
Cannabis also has a long history of being used for medicinal purposes, and as a recreational drug known by several slang terms, such as marijuana, pot or weed. Various cannabis strains have been bred, often selectively to produce high or low levels of tetrahydrocannabinol (THC), a cannabinoid and the plant's principal psychoactive constituent .
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. [70] However, social factors and environment influence drug use and abuse, making the gateway effects of cannabis different for those in differing social circumstances.
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 ...
The time to onset of effects depends strongly on stomach content, but is usually 1 to 2 hours, and may continue for a considerable length of time, whereas the effects of smoking or vaporizing cannabis are almost immediate, lasting a shorter length of time. [10] All of the active constituents enter the body when cannabis is consumed orally.