On April 19, 1943, chemist Albert Hofmann intentionally ingested LSD, and felt the drug’s hallucinogenic effects while riding his bicycle home. This short animation imagines what that journey ...

While working at the mental hospital that inspired his novel One Flew Over the Cuckoo's Nest, Ken Kesey became one of the first Americans to take LSD. You can relive his historic experience ...

Discovered in 1943, LSD — or lysergic acid diethylamide — was the subject of numerous scientific studies into its psychiatric use during the 1950s and 1960s.

It's been reviled and revered, criminalized and exploited by the CIA. And now and other psychedelic drugs are being tested as legitimate medical treatments. NPR's original animation tells the tale.

For many, the psychedelic Sixties began at an event called the Trips Festival that took place in San Francisco the third weekend of January 1966. At the three-day blowout, between 3,000 and 5,000 p… ...

LSD Gives Congenitally Blind Man Synesthesia-Like Hallucinations 'Every time I did acid, I experienced something new and spectacular.' by Sarah Sloat April 9, 2018 ...

A new discovery of how LSD changes a protein’s structure may explain why the drug is so powerful, and why its trips are so long and strange.

Fifteen healthy people, who were experienced users of lysergic acid diethylamide, or LSD, came twice to a lab in London. (LSD is illegal in the UK, but it’s possible to use it in research with ...

In their study of participants on LSD, the team used a technique called “connectome-harmonic decomposition” to show the ways in which LSD alters connections among and within areas of the brain.

Some users of LSD say one of the most profound parts of the experience is a deep oneness with the universe. The hallucinogenic drug might be causing this by blurring boundaries in the brain, too.