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Heavy marijuana use in adolescence has also been associated with deficits in cognition. A recent study assessing changes in neuropsychological functioning resulting from long-term cannabis use followed a group of adolescents (ages 12 –15 at baseline) over a 14-year period.
The observed effects on memory and learning, they said, showed long-term cannabis use caused "selective memory defects", but "of a very small magnitude". [85] A study by Johns Hopkins University School of Medicine found that heavy cannabis use is associated with decrements in neurocognitive performance even after 28 days of abstinence.
Legal cannabis (marijuana) product. Overconsumption and reliance could lead to cannabis-induced amotivational syndrome. The term amotivational syndrome was first devised to understand and explain the diminished drive and desire to work or compete among the population of youth who are frequent consumers of cannabis and has since been researched through various methodological studies with this ...
A larger body of research, though, reveals concerns about the effects of heavy, long-term marijuana use — especially on young people's mental health.
D’Souza added that cannabis use can have serious impacts on the developing brain because of its effects on the endocannabinoid system, a complex signaling system in the brain that marijuana targets.
A scientific review published in JAMA Psychiatry in 2016 found that people who use marijuana are more likely to develop temporary psychosis, as well as long-lasting mental disorders like ...
How telling people about the side effects of a drug can make them sick SEE ALSO: 11 key findings from one of the most comprehensive reports ever on the health effects of marijuana
Cannabis users have shown decreased reactivity to dopamine, suggesting a possible link to a dampening of the reward system of the brain and an increase in negative emotion and addiction severity. [11] Cannabis users can develop tolerance to the effects of THC. Tolerance to the behavioral and psychological effects of THC has been demonstrated in ...