Shrooms are consume relatively rarely, with only about 0.1 percent of respondents reporting psychedelic (a category which includes mescaline, LSD, peyote and MDMA) use within the past year. In 2010, approximately 21 million Americans had try magic mushrooms at least once in their lifetime.
Psilocybin mushrooms—often shorten to “shrooms”—commonly sell in the United States include Psilocybe semilanceata, throughout North America and Europe,and Psilocybe cubensis, which were first scientifically describe in Cuba and are native to much of South and Central America.
Psilocybin mushrooms is use by human societies for thousands of years, and is feature in prehistoric art in both Europe and Mesoamerica. The use of hallucinogenic mushrooms in America was partially stamp out by Catholic missionaries during the Spanish conquest, but continue to be use in indigenous ceremonies in Mexico.
In 1957, Life magazine publish the account of two ethnomycologists, who participate in just such a ceremony (it was reveal in 2016 that their expedition was fund by the CIA’s Project MKUltra). A year later, Albert Hoffman, the Swiss chemist who first synthesize LSD, isolate the psychedelic compound psilocybin.