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Smoking cessation, usually called quitting smoking or stopping smoking, is the process of discontinuing tobacco smoking. [1] Tobacco smoke contains nicotine, which is addictive and can cause dependence.
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.