Learn more about hallucinations that may occur as you’re drifting off to sleep — plus, know when it’s time to speak with a doctor.

Hallucinations are unreal sensory experiences, such as hearing or seeing something that is not there. Any of our five senses (vision, hearing, taste, smell, touch) can be involved. Most often, when we ...

In China, a particular species of edible mushroom causes hundreds of cases of hallucinations annually, as well as some delirium, dizziness, and mania. The hallucinations tend to be of tiny “elves” ...

For the best experience, please enable JavaScript in your browser settings. "You perceive all these things that are not real but you don't have to be struggling with ...

Researchers link glymphatic system (brain waste-clearance) dysfunction in childhood to the future development of psychosis and chemical imbalances.

Michael J. Fox joins Harrison Fordand an ensemble cast for season 3 of Shrinking, a comedy-drama series about a therapist who helps patients working through their mental health issues while dealing ...

What causes olfactory hallucinations (phantosmia)? Answer From Jerry W. Swanson, M.D. An olfactory hallucination (phantosmia) makes you detect smells that aren't really present in your environment.

Hallucination is the perception of having seen, heard, touched or smelled something that was not there. It is believed that mental processes that operate during hallucinations include memories and ...