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 ...

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 ...