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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.
In 2003, 8.4% of students had consumed marijuana during the previous twelve months, and in 2014, 17% had. [13] The typical user at this age was much more likely to be male than female. There are many concerns about this increase in cannabis use, which is why new prevention strategies are being suggested, such as drug education courses.
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.
Teens and social media: Half of teens in the U.S. receive hundreds of phone notifications every day, Common Sense Media study finds. What does that do to their brains?
Nicotine changes the way synapses are formed, which can harm the parts of the brain that control attention and learning. [6] Preclinical studies indicate that teens being exposed to nicotine interferes with the structural development of the brain, inducing lasting alterations in the brain's neural circuits. [98]
It will likely come as little surprise to many parents that a large percentage of American teens say their use of certain social media sites is “almost constant,” according to a new Pew ...
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Methamphetamine use can be neurotoxic, which means it damages dopamine neurons. [71] As a result of this brain damage, chronic use can lead to post acute withdrawal syndrome. [72] Caffeine: Often found in coffee, black tea, energy drinks, some soft drinks (e.g., Coca-Cola, Pepsi, and Mountain Dew, among others), and chocolate. It is the world's ...