LSD — casually known as acid — is a powerful hallucinogenic drug made from lysergic acid, a fungus that grows on grains like rye. You might also hear it referred to as “dots” or “lucy.” An LSD high is ...

This day—April 19—is the 78th anniversary of the first-ever acid trip. It is affectionately referred to by psychonauts around the globe as Bicycle Day. The psychedelic compound LSD is known primarily ...

Researchers are investigating whether the drug could be used in mainstream medicine—with and without its hallucinatory ...