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One of the eternal questions in cannabis culture has finally been answered by science: After consuming marijuana, how long will you stay high?
In a 2021 study published in Neuroscience & Biobehavioral Reviews, researchers led by Danielle McCartney of the University of Sydney identified a “window of impairment” that lasts anywhere from three to ten hours, depending on the THC dose, the mode of ingestion, and the consumer’s previous cannabis experience.
After taking 20mg of THC, most consumers shed the high within four to five hours.
Those are a lot of factors, but the TL;DR is: generally, four hours.
The intoxicating high from a lighter…
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