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Marijuana impacts young people's mental development, their ability to concentrate in school, and their motivation and initiative to reach goals. And marijuana affects people of all ages: Harvard University researchers report that the risk of a heart attack is five times higher than usual in the hour after smoking marijuana.
Recognizing marijuana is here to stay, the book provides reliable information about marijuana's effects on people. The authors recognize that marijuana policies and personal decisions about marijuana use should be based on scientific evidence, factual information, and common sense.
A 2013 study showed that 32.8% of people surveyed in Utah, a state where Marijuana use is illegal, believed that they had a risk of harm from Marijuana consumption, whereas only 18.8% of people surveyed in Washington, a state where adult-use is legal, believed they had a risk of harm. [13]
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.
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 world is "going green" at an increasingly rapid pace. For premium support please call: 800-290-4726 more ways to reach us
World map of annual cannabis prevalence. This is a list of the annual prevalence of cannabis use by country (including some territories) as a percentage of the population. The indicator is an "annual prevalence" rate which is the percentage of the youth and adult population who have consumed cannabis at least once in the past survey year.
Dr. Phil also expressed his belief that smoking marijuana can cause a "multi-point drop" in a person's IQ, in addition to implying that the drug's use can be associated with violent behavior.