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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.
A large study from the University of Colorado found heavy cannabis use is linked to reduced brain activity. Lead researcher Joshua Gowin and neurosurgeon Paul Saphier discuss the impact on health.
Regular heavy marijuana use may increase a person’s risk of developing some head and neck cancers, a study published Thursday in JAMA Otolaryngology-Head & Neck Surgery found.. The study found ...
Heavy cannabis use could negatively impact certain types of memory, largest study of its kind to date has found. Image credit: Valeria Mongelli/Bloomberg/Getty Images.
Cannabis use disorder (CUD), also known as cannabis addiction or marijuana addiction, is a psychiatric disorder defined in the fifth revision of the Diagnostic and Statistical Manual of Mental Disorders and ICD-10 as the continued use of cannabis despite clinically significant impairment.
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. [86]
A new study found that heavy cannabis use is associated with a high risk of developing head and neck cancer. Jason Colston/Getty Images This article originally appeared on Healthline
Marijuana use in the United States is three times above the global average, but in line with other Western democracies. Forty-four percent of American 12th graders have tried the drug at least once, and the typical age of first-use is 16, similar to the typical age of first-use for alcohol but lower than the first-use age for other illicit drugs.