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Marijuana legalization

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Marijuana: Effects of Weed on Brain and Body. Marijuana is a combination of shredded leaves, stems and flower buds of the Cannabis sativa plant.

Marijuana: Effects of Weed on Brain and Body

Marijuana can be smoked, eaten, vaporized, brewed and even taken topically, but most people smoke it. The intoxicating chemical in marijuana is tetrahydracannabinol, or THC. According to research from the Potency Monitoring Project, the average THC content of marijuana has soared from less than 1 percent in 1972, to 3 to 4 percent in the 1990s, to nearly 13 percent today.

National Institute on Drug Abuse (NIDA) What is medical marijuana?

National Institute on Drug Abuse (NIDA)

The term medical marijuana refers to using the whole unprocessed marijuana plant or its basic extracts to treat a disease or symptom. The U.S. Food and Drug Administration (FDA) has not recognized or approved the marijuana plant as medicine. However, scientific study of the chemicals in marijuana, called cannabinoids, has led to two FDA-approved medications that contain cannabinoid chemicals in pill form. Continued research may lead to more medications. Neighboring US states sue Colorado over pot fallout. By Afp Published: 00:18 GMT, 19 December 2014 | Updated: 00:18 GMT, 19 December 2014 Colorado's neighbors Oklahoma and Nebraska filed a lawsuit in the US Supreme Court Thursday protesting that the western state's legalization of marijuana is harming them.

Neighboring US states sue Colorado over pot fallout

"The State of Colorado has created a dangerous gap in the federal drug control system enacted by the United States Congress," said the 83-page lawsuit, published by the Denver Post. "Marijuana flows from this gap into neighboring states, undermining (their) own marijuana bans, draining their treasuries, and placing stress on their criminal justice systems," it added. A cannabis plant greets job seekers as they sign in at CannaSearch, Colorado's first cannabis job fair, on March 13, 2014 in Denver, Colorado ©Doug Pensinger (Getty/AFP/File)

US lawmakers, drug enforcement clash on marijuana law. Washington: US lawmakers who support steady relaxation of state laws on marijuana sparred on Tuesday with Obama administration officials who continue to label the drug in the same high-danger category as heroin.

US lawmakers, drug enforcement clash on marijuana law

The Drug Enforcement Administration's chief deputy said marijuana deserved to remain listed as a "Schedule 1" narcotic - a list which includes severely addictive drugs including LSD and ecstasy - even though he could not identify a single fatal overdose attributable to cannabis last year. "Marijuana is the most widely available and commonly abused illicit drug in the United States," the DEA's Thomas Harrigan told a House panel in a joint statement with John Walsh, the US attorney in Colorado, which along with Washington state legalized recreational marijuana use this year.

They said abuse among young Americans is on the rise, with marijuana's more potent production methods and increased trafficking by international drug cartels the growing concerns. National Institute on Drug Abuse (NIDA) Marijuana use can lead to the development of problem use, known as a marijuana use disorder, which takes the form of addiction in severe cases.

National Institute on Drug Abuse (NIDA)

Recent data suggest that 30 percent of those who use marijuana may have some degree of marijuana use disorder.18 People who begin using marijuana before the age of 18 are four to seven times more likely to develop a marijuana use disorder than adults.19 Marijuana use disorders are often associated with dependence—in which a person feels withdrawal symptoms when not taking the drug. People who use marijuana frequently often report irritability, mood and sleep difficulties, decreased appetite, cravings, restlessness, and/or various forms of physical discomfort that peak within the first week after quitting and last up to 2 weeks.20,21 Marijuana dependence occurs when the brain adapts to large amounts of the drug by reducing production of and sensitivity to its own endocannabinoid neurotransmitters.22,23.

Marijuana: How Does It Affect You? Gallup Analytics: “In U.S., 38% Have Tried Marijuana, Little Changed Since '80s.”

Marijuana: How Does It Affect You?

Harvard Medical School: “Medical Marijuana and the Mind.” National Institute on Drug Abuse: “Drug Facts: Marijuana.” Mayo Clinic: “Marijuana (Cannabis sativa). " National Highway Traffic Safety Administration: “Cannabis/Marijuana.” Melamede, R. National Institute on Drug Abuse (NIDA) Marijuana—also called weed, herb, pot, grass, bud, ganja, Mary Jane, and a vast number of other slang terms—is a greenish-gray mixture of the dried, shredded leaves and flowers of Cannabis sativa, the hemp plant.

National Institute on Drug Abuse (NIDA)

Some people smoke marijuana in hand-rolled cigarettes called joints; many use pipes, water pipes (sometimes called bongs), or marijuana cigars called blunts (often made by slicing open cigars and replacing some or all of the tobacco with marijuana).1 Marijuana can also be used to brew tea and, particularly when it is sold or consumed for medicinal purposes, is frequently mixed into foods (edibles) such as brownies, cookies, or candies. Stronger forms of marijuana include sinsemilla (from specially tended female plants) and concentrated resins containing high doses of marijuana’s active ingredients, including honeylike hash oil, waxy budder, and hard amberlike shatter. These resins are increasingly popular among those who use them both recreationally and medically.