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Researchers found that 63% of lifetime heavy cannabis-using participants and 68% of recent cannabis users showed reduced brain activity during their working memory task.
New research shows that heavy lifetime use of cannabis — more than 1,000 times — is associated with reduced activity in areas of the brain involved in working memory. The study adds to ...
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.
The book's chapters thus address issues of marijuana's real or putative effects on sex hormones and reproduction, lungs, the immune system, the brain, memory, cognition and motivation; the gateway theory and addiction; crime, deviance and punishment, and so on -- in other words, virtually all the concerns that have been raised for decades in ...
Because the law limited only Δ 9-THC levels, many other cannabinoids are generally considered legal to sell and are widely available in stores and online, including Δ 8-THC, Δ 10-THC, HHC, and THCP, [68] [69] but have not had the same in-depth research that the Δ 9 isomer has on the human body; carrying potential risks in the short- or long ...
As an alternative to inhalation methods, cannabis may be ingested. However, herbal cannabis must be sufficiently heated or dehydrated to cause decarboxylation of its most abundant cannabinoid, tetrahydrocannabinolic acid (THCA), into psychoactive tetrahydrocannabinol (THC). [9]
There is a strong relation between cannabis use and the risk of psychosis, though the direction of causality is debated. Physical effects include increased heart rate, difficulty breathing, nausea, and behavioral problems in children whose mothers used cannabis during pregnancy; short-term side effects may also include dry mouth and red eyes.
The presence of these specialized cannabinoid receptors in the brain led researchers to the discovery of endocannabinoids, such as anandamide and 2-arachidonoyl glyceride . [ citation needed ] THC is a lipophilic molecule [ 27 ] and may bind non-specifically to a variety of entities in the brain and body, such as adipose tissue (fat).