"Scientists have designed compounds that hit the same key receptor that LSD activates without causing hallucinations. A single dose produced powerful antidepressant and antianxiety effects in mice that lasted up to two weeks. The study was recently published in the journal Nature. UC San Francisco reports The compounds were designed to fit into the 5HT2a receptor, which is the main target of psychedelics like LSD and psilocybin mushrooms. The receptor is also activated by serotonin, a naturally occurring hormone that regulates mood, cognition and many other functions in the body. The 5HT2a...