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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.
Before this can happen, the FDA must first permit the study of the medical benefits and drawbacks of the substance, which it has not done since it was placed on Schedule I of the Controlled Substances Act in 1970. Therefore, all expenses incurred fulfilling a medical marijuana prescription will possibly be incurred as out-of-pocket. [142]
Age. The risk of most causes of joint pain increases with age. This may be due to increased wear and stress on joints over time and a higher likelihood of other underlying medical conditions ...
The stated mission of NIDA is to support research on the causes, consequences, prevention, and treatment of drug abuse and drug addiction, and not the medicinal uses of drugs. [93] Consequently, many studies on the therapeutic benefits of cannabis were either denied or altered to comply with the limited scope and mission of NIDA. [86]
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.
Weekly cannabis use is generally required for the syndrome to occur; synthetic cannabinoids can also cause CHS. [ 6 ] [ 5 ] The underlying mechanism is unclear, with several possibilities proposed. [ 2 ] [ 5 ] Diagnosis is based on the symptoms, as well as the history of cannabis use (including a urine screen test if necessary). [ 6 ]
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.
Cannabis also has a long history of being used for medicinal purposes, and as a recreational drug known as marijuana 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 .