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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 ...
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.
These effects are still being studied and little conclusive research exists due to cannabis' federal illegal status. A mysterious syndrome causes regular weed users to endure unrelenting nausea
The effects last for two to six hours, depending on the amount used. At high doses, mental effects can include anxiety, delusions (including ideas of reference), hallucinations, panic, paranoia, and psychosis. There is a strong relation between cannabis use and the risk of psychosis, though the direction of causality is debated.
A growing body of research and numerous anecdotal reports link cannabis with several health benefits. What marijuana really does to your body and brain Skip to main content
Tobacco use, which includes smoking cigarettes, cigars, pipes and smokeless tobacco, and the use of alcohol are the two most common causes of head and neck cancers, experts say.
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.
On the positive side, a 2020 research article published in BMC Psychiatry concluded that there is "encouraging, albeit embryonic" (meaning, early stage) evidence for using medicinal cannabis to ...