Mental health disorder is a broad label used to describe conditions that include psychotic disorders such as schizophrenia, mood disorders (for example, depression), anxiety disorders, eating disorders such as anorexia and bulimia, substance-related disorders (misuse of alcohol or drugs) and psychosomatic illnesses (those brought on by emotions such as anxiety or stress).
Mental illness can be of biological origin (anatomical, chemical, or genetic) or may be triggered by a psychological factor (for example, a traumatic experience). Conditions may impact the sufferer's ability to work or study, and can contribute to problems in relationships.
This section focuses on some of the more common mental health disorders, with information on their causes and symptoms, along with some advice on how they may be diagnosed and treated.