A delusion is a false personal belief that is not subject to reason or contradictory evidence and is not explained by a person's usual cultural and religious concepts (so that, for example, it is not an article of faith). A delusion may be firmly maintained in the face of incontrovertible evidence that it is false. Delusions are common in psychotic disorders such as schizophrenia. Delusions can also be a feature of brain damage or disorders.
Sometimes colloquially referred to as thought disorders, since the new psychiatric diagnostic manual, the () was published in 2013, psychotic disorders have been referred to as schizophrenia spectrum and other psychotic disorders. In addition to the more commonly known mental disorders like schizophrenia, other mental disorders in this group include brief psychotic disorder, schizotypal personality disorder, delusional disorder, schizophreniform disorder, schizoaffective disorder, catatonia, substance/medication-induced (for example, alcohol-induced or cannabis-induced) psychotic disorder, psychosis due to another medical condition, other specified schizophrenia spectrum disorder, as well as unspecified schizophrenia spectrum and other psychotic disorder, which was formerly called psychotic disorder, not otherwise specified (NOS).
While rates of psychological disorders are often the same for men and women, women tend to have a higher rate of depression. Each year 73 million women are affected by major depression, and suicide is ranked 7th as the cause of death for women between the ages of 20–59. Depressive disorders account for close to 41.9% of the disability from neuropsychiatric disorders among women compared to 29.3% among men.