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Ancient Dreams, Modern-Day Dreamers - Natural Hallucinogens, Synthetic Hallucinogens, Hallucinogens Throughout History, Medical Experiments, From Medical Practice To Peace Rallies

Science EncyclopediaCommon Street Drugs

Drug abuse became a major public health concern during the 1960s, as millions of young people began experimenting with LSD and other substances. It was not a new phenomenon, though. People in different parts of the world have used such substances for thousands of years.

Two types of hallucinogens exist: natural and synthetic. Natural hallucinogens come from raw plants. Synthetic varieties are made by humans.

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