Hallucinogen Persisting Perception Disorder (HPPD) is a cognitive disorder in which individuals continuously re-experience visual and other sensory hallucinations that they first experienced while ...

This article originally appeared on Massive. The term “drug” applies to all substances that can induce any biological changes in any of our bodies’ functions. But that label doesn’t differentiate at ...

Emergency department (ED) visits related to hallucinogen use are linked to a 21-fold increased risk of schizophrenia spectrum disorder (SSD), results of a large population-based study show. Daniel T.