Origins of cannabis smoking: Evidence from ancient burials at high elevations

Cannabis is one of the most infamous plants on the planet today, especially in light of rapidly changing legislation surrounding its legalisation in Europe and America. Despite the popularity of the plant for its psychoactive properties, very little is known about the earliest use or cultivation of cannabis for its mind-altering effects. Cannabis plants were cultivated in East Asia for their oily seeds and fibre from at least 4000 BC. However, the early cultivated varieties of cannabis, as well as most wild populations, have low levels of THC and other cannabinoid compounds with psychoactive properties. Therefore, it has been a long-standing mystery as to when and where specific varieties of the plant with higher levels of these compounds were first recognized and used by humans. Many historians place the origins of cannabis smoking on the ancient Central Asian steppes, but these arguments rely solely on a passage from a single

... read more at: https://www.sciencedaily.com/releases/2019/06/190612165603.htm

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