Bicycle Day, celebrated annually on April 19, commemorates the world’s first recorded LSD trip, in 1943. That’s when Swiss chemist Albert Hofmann ingested lysergic acid diethylamide before bicycling ...

Add Yahoo as a preferred source to see more of our stories on Google. Bettmann via Getty Images In November 1956, three people gathered in a converted Connecticut barn to take LSD, a powerful ...

LSD was first synthesized by Swiss chemist Albert Hofmann in 1938. He discovered its powerful psychoactive effects in 1943 after accidentally ingesting a small amount and experiencing vivid ...

Albert Hofmann calculated that one teaspoon of LSD could affect 50,000 people. He arrived at that figure after accidentally absorbing a trace amount through his skin at the Sandoz laboratory in Basel ...

This article was originally published on Psychedelic Spotlight and appears here with permission. New study suggests that a non-hallucinogenic LSD analog may hold therapeutic potential for mood ...