In the 1950s and 1960s more than 1,000 papers were published documenting LSD's use treating alcohol addiction, depression and other conditions. But a federal backlash was in full swing by the late ...

A rigorous new study finds that a single dose of LSD can ease a person's anxiety for months. NPR's Jon Hamilton reports that the study shows how research on psychedelics is entering the mainstream.

LSD reduced symptoms of anxiety in a midstage study published Thursday, paving the way for additional testing and possible medical approval of a psychedelic drug that has been banned in the U.S. for ...