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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 2012 special report by the British Lung Foundation concluded that cannabis smoking was linked to many adverse effects, including bronchitis and lung cancer. [83] They identified cannabis smoke as a carcinogen and also said awareness of the danger was low compared with the high awareness of the dangers of smoking tobacco particularly among ...
What are effects of smoking marijuana on the lungs? Marijuana could cause a type of emphysema more than tobacco smoking, new study finds. Smoking marijuana can raise risk of lung disease, chest ...
A limited number of studies have examined the effects of cannabis smoking on the respiratory system. [105] Chronic heavy marijuana smoking is associated with respiratory infections, [106] coughing, production of sputum, wheezing, and other symptoms of chronic bronchitis. [51]
A growing body of research and numerous anecdotal reports link cannabis with several health benefits.
Now, these benefits are by no means tried and true — there's still a lot of research to be done on the actual benefits of marijuana — but they are ripe for future study. First up, cancer.
Cannabis smoking (known colloquially as smoking weed or smoking pot) is the inhalation of smoke or vapor released by heating the flowers, leaves, or extracts of cannabis and releasing the main psychoactive chemical, Δ 9-tetrahydrocannabinol (THC), which is absorbed into the bloodstream via the lungs.
Cannabis use disorder is diagnosed when a person has two or more of such symptoms as craving weed, becoming tolerant to its effects, using more than intended, using marijuana even though it causes ...