Turn on, tune in: One of Lynne Malcolm's favourite programs

Turn on, tune in and drop out … that was the catch cry of U.S. psychologist Timothy Leary in the 1960s. By 1966 psychedelics were demonised and banned, but now—in controlled scientific settings—there's a psychedelic 'renaissance' in mental health therapy. Early research on the use of ecstasy in the treatment of stress disorders looks promising.