A delusion is a belief based on an inaccurate interpretation of reality, despite clear evidence to the contrary. A delusional disorder causes a person to have delusional thoughts for a prolonged ...

Delusions are a symptom of psychosis. They involve strong beliefs in something that is not true. Certain mental health conditions, such as schizophrenia and delusional disorder, often involve ...

When someone has persecutory delusions, they believe a person or group wants to hurt them. They firmly believe this is true, despite the lack of proof. It may occur with some mental health disorders.

A new study from Simon Fraser University researchers has found a close link between high levels of social media use and psychiatric disorders that involve delusions, such as narcissism and body ...

Delusional disorder refers to a condition in which an individual displays one or more delusions for one month or longer. Delusional disorder is distinct from schizophrenia and cannot be diagnosed if a ...

Delusions of grandeur are a symptom of mental health conditions like bipolar disorder and schizophrenia. People with this ...

Delusions are fixed beliefs that do not change, even when a person is presented with conflicting evidence. Delusions are considered "bizarre" if they are clearly implausible and peers within the same ...