Psilocybin, aka magic mushrooms, actually calms, rather than stimulates, certain brain functions.
The common conception is that psychedelics do something extra to cause their effects—increase activity, add hallucinations, promote awareness, etc. A study that examined brain scans of people under the influence of psilocybin found that it reduces activity in certain areas of the brain. That reduction of activity leads to the drug’s effect on cognition and memory. Psychedelics, and psilocybin in particular, might actually be eliminating what could be called the extra “noise” in the brain.
Psilocybin could kill smoking addiction.
Psychiatry professor Matthew Johnson, who works at Johns Hopkins University School of Medicine, presented the preliminary results of a pilot feasibility study looking at the ability of psilocybin to treat smoking addiction at the 2013 Psychedelic Science conference in Oakland, Calif. For the study, five cigarette-addicted participants underwent placebo-controlled psilocybin treatment with a psychiatrist. All five completely quit smoking after their first psilocybin session. At all followup visits, which occurred up to one year later for the first four participants, it was biologically confirmed that the participants had abstained from cigarettes.