A recent study found that most people treated with a single high dose of psilocybin, the active ingredient in psychoactive mushrooms, showed a long-lasting change in personality—namely, an increase in openness. One of five broad measures of temperament used by psychologists, this quality is generally defined as openness to new ideas or experiences, awareness of feelings in the self and others, and is strongly tied to creativity and aesthetic appreciation.

Drug in Magic Mushrooms Linked to Long-Lasting Personality Change…for the Better