1. Effects of marijuana
... is the most commonly used illicit drug in the United States. It is a dry, shredded green or brown mix of flowers, stems, seeds, and leaves of the hemp plant called Cannabis. Marijuana is smoked as a cigarette, in a pipe, or a bong. It also is smoked in blunts, which are cigars that have been emptied ... of tobacco and refilled with marijuana. It is mixed in combination with another drug. The main active chemical in marijuana is ... THC. The membranes of certain nerve cells in the brain contain protein receptors that bind to THC. Once the THC is in place, it kicks off a series of reacti...
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- Grade Level: High School