"Dangers of Marijuana Use" by DEA

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Do the benefits of using marijuana outweigh the pitfalls?

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“We are increasingly concerned that regular or daily use of marijuana is robbing many
young people of their potential to achieve and excel in school or other aspects of life,” said
NIDA Director Nora D. Volkow, MD. “THC, a key ingredient in marijuana, alters the
ability of the hippocampus, a brain area related to learning and memory, to communicate
effectively with other brain regions. In addition, we know from recent research that
marijuana use that begins during adolescence can lower IQ and impair other measures of
mental function in adulthood.”18

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 “We should also point out that marijuana use that begins in adolescence increases the risk
they will become addicted to the drug,” said Volkow. “The risk of addiction goes from
about 1 in 11 overall to 1 in 6 for those who start using in their teens, and even higher
among daily smokers.”
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