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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.
A larger body of research, though, reveals concerns about the effects of heavy, long-term marijuana use — especially on young people's mental health.
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 growing body of research and numerous anecdotal reports link cannabis with several health benefits.
A participant in a study on the effects of cannabis, shows the marijuana flowers he has grown in his backyard, in Longmont, Colorado, U.S., December 19, 2019.
Adolescent cannabis use is associated with increased cannabis misuse as an adult, issues with memory and concentration, long-term cognitive complications, and poor psychiatric outcomes including social anxiety, suicidality, and addiction. [29] [30] [31] There are several reasons why adolescents start a smoking habit.
Two new studies suggest that regular use of marijuana could be linked to a higher risk of heart failure or heart attack, especially among older people. The preliminary findings of the studies ...