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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.
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 ...
Individuals were considered heavy cannabis users if they had used marijuana more than 1,000 times in their lives; moderate users if they had used weed between 10 and 999 times; and nonusers if ...
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 ...
After a few breakouts, I wondered: Does smoking weed cause acne? But according to a dermatologist, the answer is a bit complicated. ... “Marijuana is commonly associated with what we call a ...
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 ...
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 smoke contains thousands of organic and inorganic chemicals, including many of the same carcinogens as tobacco smoke. [82] 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]