Cannabis (drug)
The Cannabis sativa plant can be dried or otherwise processed to yield products containing large concentrations of compounds that have medicinal and psychoactive effects when ingested, usually by smoking or eating. Cannabis has been used for medical and psychoactive effects for thousands of years. In the early 20th century, there was a sudden upswing in the use of cannabis as a psychoactive substance, mostly for recreational purposes but to some extent for religious purposes. Due to negative media attention regarding its psychoactive effects, as well as heavy lobbying from pharmaceutical companies, the possession, use, or sale of psychoactive cannabis products became illegal in most parts of the world during the early twentieth century, and remains that way today. For the physiology and science of the plant see Cannabis sativa.

Cannabis History

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