Conversion disorder is a psychiatric condition in which a person develops physical symptoms that are not under voluntary control and are not explained by a neurological disease or another medical ...

The brain is a complex organ that produces all kinds of physical and emotional effects on your body. Sometimes, emotional trauma or psychological stress can trigger physical symptoms. When this ...

Functional neurologic disorder (FND) is a condition where a person develops symptoms that are not consistent with a neurological disease or other health condition, but they impair the person’s ability ...

Forbes contributors publish independent expert analyses and insights. Alice G. Walton, PhD is a writer who covers health and mental health. In the case of the LeRoy students, factors like drugs, ...

Fifteen teenage girls report a mysterious outbreak of spasms, tics and seizures in upstate New York. But tests find nothing physically wrong. Scores of adults in Northern California report crawling ...