A disorder that affects a person's ability to think, feel and behave clearly.

The exact cause of schizophrenia isn't known, but a combination of genetics, environment and altered brain chemistry and structure may play a role.

Schizophrenia is characterised by thoughts or experiences that seem out of touch with reality, disorganised speech or behaviour and decreased participation in daily activities. Difficulty with concentration and memory may also be present.

Treatment is usually lifelong and often involves a combination of medications, psychotherapy and coordinated speciality care services.