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The temporal relationship between cannabis and psychosis was reviewed in 2014, and the authors proposed that "[b]ecause longitudinal work indicates that cannabis use precedes psychotic symptoms, it seems reasonable to assume a causal relationship" between cannabis and psychosis, but that "more work is needed to address the possibility of gene ...
Metabolites of cannabis are usually detectable in urine drug tests from 3 days up to 10 days according to Redwood Laboratories; heavy users can produce positive tests for 30 days or longer after ceasing cannabis use. [2] [3] The length of time may vary to some degree according to metabolism, quantity, and frequency of use. [4]
The use of cannabis, at least as fiber, has been shown to go back at least 10,000 years in Taiwan. "Dà má" (Pinyin pronunciation) is the Chinese expression for cannabis, the first character meaning "big" and the second character meaning "hemp".
A dried cannabis flower. The short-term effects of cannabis are caused by many chemical compounds in the cannabis plant, including 113 [clarification needed] different cannabinoids, such as tetrahydrocannabinol, and 120 terpenes, [1] which allow its drug to have various psychological and physiological effects on the human body.
[23] [33] THC is detectable within seconds with inhalation and peak levels of THC occur after 3 to 10 minutes. [3] [33] 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.
Blood THC levels typically peak quickly after smoking cannabis, reaching upward of 100 nanograms per milliliter of blood within 15 minutes of smoking it. Then, THC levels drop rapidly to less than ...
A 2022 study published in the Journal of Psychopharmacology found that participants given oral cannabis (the lab-grade alternative to an edible) showed low blood THC concentration at the height of ...
Tetrahydrocannabinol (THC) is a fat-soluble cannabinoid that can be deposited into a person's fat stores, accounting for the long elimination half-life of THC. [3] During periods of stress or food deprivation, a person's fat stores can be mobilized for energy consumption, releasing the previously stored THC back into the blood. [3]