Marijuana Studies Warn of Potential Risks for Young Users
A recent review of marijuana studies highlights potential risks, particularly for young users. While more research is needed, the findings suggest caution, especially for those under 25.
A 2012 study found that heavy marijuana use over 18 months led to IQ and cognitive function decreases in adolescents. This effect was not reversed in those who quit later in life. However, starting heavy use as an adult didn't cause IQ loss. The study had limitations, and more research is ongoing.
Cannabis affects the brain by binding to CB1 and CB2 receptors, altering neural signaling. THC, the psychoactive component, strongly activates these receptors, increasing dopamine release and potentially disrupting dopamine balance. This can impact mood, motivation, and mental stability. CBD, another cannabis component, may regulate these effects and lower some THC-induced mental issues.
Early cannabis use is linked to an increased risk of mental health conditions like major depression and schizophrenia. It's also associated with potentially permanent attention and memory deficits, and structural brain changes in adolescents.
While more research is needed to fully understand marijuana's effects, current findings suggest that young users may face significant risks. These include cognitive decline, mental health issues, and potentially permanent brain changes. The review underscores the importance of further investigation and cautious use, particularly among young people.
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