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Cannabis smoke was listed as a cancer agent in California in 2009. [31] A study by the British Lung Foundation published in 2012 identifies cannabis smoke as a carcinogen and also finds awareness of the danger is low compared with the high awareness of the dangers of smoking tobacco particularly among younger users. Other observations include ...
A study published in the Journal of the American Medical Association found while cigarette smoke damaged lungs, moderate marijuana smokers showed greater lung capacities than non-users.
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.
Over time, the marijuana gateway hypothesis has been studied more and more. In one published study, the use of marijuana was shown not a reliable gateway cause of illicit drug use. [67] However, social factors and environment influence drug use and abuse, making the gateway effects of cannabis different for those in differing social circumstances.
That marijuana is associated with heart problems is a very urgent message for Americans to be aware of, Wu said, as 1 in 5 people over age 12 now report having used marijuana in the last year ...
Smoke is one key reason for the association between smoking weed and head and neck cancers, experts say. Smoking tobacco doubles the risk of developing head and neck squamous cell carcinoma ...
Cannabis (/ ˈ k æ n ə b ɪ s /), [2] commonly known as marijuana (/ ˌ m æ r ə ˈ w ɑː n ə /), [3] weed, and pot, among other names, is a non-chemically uniform drug from the cannabis plant. Native to Central or South Asia, the cannabis plant has been used as a drug for both recreational and entheogenic purposes and in various ...
[3] [32] Smoking or inhaling THC results in greater blood levels of THC and its metabolites and a much faster onset of action than oral administration of THC. [22] [32] Inhalation of THC bypasses the first-pass metabolism that occurs with oral administration. [22] The bioavailability of THC with inhalation is increased in heavy users. [3]