By the 1960s, LSD started popping up on university campuses around America. Word spread and it became popular with everyone from hippies to Hollywood stars, often taken in uncontrolled settings.

Rise of Recreational Use By the mid-1960s, LSD had gained popularity outside the clinical setting, becoming a symbol of the countercultural movement. Figures like Harvard psychologist Timothy ...

LSD is a relatively new drug, compared to many others. And its history has been influenced by some unlikely groups.

Unsupervised use of hallucinogens like LSD is high, posing significant risks. However, LSD is being clinically tested for treating anxiety and so far seems effective.

An in-depth look at the story behind the Steely Dan acid anthem 'Kid Charlemagne' and the enigmatic Grateful Dead soundman ...