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According to the most recent data from the Centers for Disease Control and Prevention, an estimated 48.2 million people in the U.S., or 18% of Americans, reported using marijuana at least once in ...
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 effects last for two to six hours, depending on the amount used. At high doses, mental effects can include anxiety, delusions (including ideas of reference), hallucinations, panic, paranoia, and psychosis. There is a strong relation between cannabis use and the risk of psychosis, though the direction of causality is debated.
Cannabis has a longstanding reputation for helping people relax, but recent research has found it can have a negative impact on mental health. For that reason, it's understandable to have questions.
A participant in a study on the effects of cannabis, shows the marijuana flowers he has grown in his backyard, in Longmont, Colorado, U.S., December 19, 2019.
Two main questions arise in the law surrounding driving after having ingested cannabis: (1) whether cannabis actually impairs driving ability, and (2) whether the common practice of testing for THC (the main psychoactive substance in cannabis) is a reliable means to measure impairment.
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.