Why hemp and marijuana are different

Genetic differences between hemp and marijuana determine whether Cannabis plants have the potential for psychoactivity, a new study shows. The market for hemp seed and fiber in the U.S. surpassed $600 million last year alone. But despite the plant's surging popularity as an ingredient in food, personal care products, clothing and even construction, commercial hemp cultivation is prohibited by the federal government. Currently, all hemp products are imported to the U.S.

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