Schizophrenia is a severe and chronic mental health disorder that affects how a person thinks, feels, and behaves. It is characterized by a range of symptoms that can include hallucinations, delusions, disorganized thinking and speech, and abnormal behaviours. Individuals with schizophrenia may also experience a decline in their ability to function in daily life, including in work, social relationships, and self-care. The exact causes of schizophrenia are not yet fully understood, but it is believed to be related to a combination of genetic, environmental, and brain chemistry factors.