Question

John, a 25-year-old mechanic, thinks he is Napoleon. He further believes he is being imprisoned against his will in the mental hospital where his relatives have brought him for treatment. John is most likely suffering from _____.

Answer 1

Delusional disorder, previously called paranoid disorder, is a type of serious mental illness — called a “psychosis”— in which a person cannot tell what is real from what is imagined. The main feature of this disorder is the presence of delusions, which are unshakable beliefs in something untrue.