Nude psychotherapy was the use of non-sexual social nudity as an intentional means to improve the participant's psychological health. This practice is now largely forgotten, never having achieved mainstream acceptance.[1] The practice traces its origin to the 1930s with psychological studies of the effects of social nudity on the lives of naturists. It developed in the 1960s along with the encounter group movement as a way to challenge preconceptions and promote intimacy and trust, but suffered a decline in the 1980s. In contemporary America, nudity has been incorporated into workshops and therapies for health and wellbeing generally conducted outside the medical and psychological professions.