The main types of mental ill health according to the psychiatric classification are; cognitive disorders, personality disorders, mood disorders, eating disorders, substance related, anxiety and psychotic disorders. All these categories show symptoms in a different way.
Cognitive disorders are a category of in the psychiatric classification, this disorder generally affect cognitive abilities this includes learning, memory, and problem solving. Cognitive disorders also include delirium and dementia.
Personality disorders is another main category, this is when an individual behaves differently to the average person. An individual with a personality disorder usually has confused ways of thinking and problems controlling their emotions. They may have unstable relationships and constantly worry about people abandoning them.
Mood disorders is an umbrella for a group of illnesses. Mood disorders are when individuals have a serious change in mood. Illnesses in the mood disorder group include: major depressive disorder, bipolar disorder and SAD (seasonal affective disorder).