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Cannabis is the most widely used illicit drug in the Western world. [3] In the United States, 10-20% of those who begin the use of cannabis daily will later become dependent. [4] [5] Cannabis use can lead to addiction, which is defined as "when the person cannot stop using the drug even though it interferes with many aspects of his or her life."
A chemical in marijuana, THC, triggers brain cells to release the chemical dopamine. Dopamine creates good feelings — for a short time. Here's the thing: Once dopamine starts flowing, a user feels the urge to smoke marijuana again, and then again, and then again. Repeated use could lead to addiction, and addiction is a brain disease.
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, and 120 terpenes, [1] which allow its drug to have various psychological and physiological effects on the human body.
Now, these benefits are by no means tried and true — there's still a lot of research to be done on the actual benefits of marijuana — but they are ripe for future study. First up, cancer.
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 ...
Cannabis smoking (known colloquially as smoking weed or smoking pot) is the inhalation of smoke or vapor released by heating the flowers, leaves, or extracts of cannabis and releasing the main psychoactive chemical, Δ 9-tetrahydrocannabinol (THC), which is absorbed into the bloodstream via the lungs.
Quitting all tobacco products definitively reduces risk the most. However, quitting is difficult, and even approved smoking cessation methods have a low success rate. [1] In addition, some smokers may be unable or unwilling to achieve abstinence. [15] Harm reduction is likely of substantial benefit to these smokers and public health.
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