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Cannabis smoke contains thousands of organic and inorganic chemical compounds. This tar is chemically similar to that found in tobacco smoke or cigars. [28] Over fifty known carcinogens have been identified in cannabis smoke. [29] These include nitrosamines, reactive aldehydes, and polycylic hydrocarbons, including benz[a]pyrene. [30]
The time to onset of effects depends strongly on stomach content, but is usually 1 to 2 hours, and may continue for a considerable length of time, whereas the effects of smoking or vaporizing cannabis are almost immediate, lasting a shorter length of time. [10] All of the active constituents enter the body when cannabis is consumed orally.
A 2012 review of cannabis use and dependency in the United States by Danovitch et al said that "42% of persons over age 12 have used cannabis at least once in their lifetime, 11.5% have used within the past year, and 1.8% have met diagnostic criteria for cannabis abuse or dependence within the past year. Among individuals who have ever used ...
Right now, medical marijuana is commonly used to treat nausea, chronic pain, glaucoma and a range of other issues. But that might not be all that the drug can do. Several studies have uncovered ...
Because marijuana stays in your system long past the window of cognitive impairment, the potential for false arrests is an increasing concern in states where cannabis is legal.
A survey of American adults found that many erroneously believe it is safer for the lungs to smoke weed than tobacco, and that any secondhand smoke from marijuana is also safer.
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.
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 ...