Psychedelics, also known as hallucinogens, are a class of drugs that alter a person's perception of reality, thoughts, and feelings. These substances, some naturally derived from plants and fungi and others synthetically produced, can induce non-ordinary mental states and a perceived "expansion of consciousness". Classic psychedelics include substances like psilocybin (found in "magic mushrooms"), LSD, mescaline, and DMT. They primarily interact with serotonin receptors in the brain, particularly the 5-HT2A receptors, modulating sensory perception and cognition. Use of psychedelics can lead to vivid visual and auditory changes, altered states of consciousness, and strong emotions, ranging from euphoria and connection to fear and anxiety.
Recent research explores the therapeutic potential of psychedelics for treating mental health conditions like depression, PTSD, and addiction. Psychedelic therapy, which combines controlled doses of substances like psilocybin, ketamine or MDMA with counseling, aims to promote emotional healing and personal growth. Studies suggest benefits such as rapid and lasting improvements in mental health, particularly for those who haven't responded well to traditional treatments. While research is ongoing and many psychedelics remain controlled substances, certain ones are legally approved for specific treatments in some countries, and the FDA has granted "breakthrough therapy" status to psilocybin for treatment-resistant depression.