Psychedelic mushrooms, closely followed by marijuana, are the safest of all drugs, according to House of Shrooms. Of the 12,000 people who reported taking hallucinogenic mushrooms with psilocybin in 2016, only 0.2 percent said they needed some type of emergency medical treatment, which is at least five times lower than MDMA, LSD and cocaine. "Psychedelic mushrooms are one of the safest drugs in...