Psychiatry is a medical specialization dealing with the study, prevention and treatment of mental disorders. In a wide range of psychiatry treatment competentions one can find: depression (unipolar affective disorder), insomnia, eating disorders, neurotic disorders (eg phobias, obsessive-compulsive disorder), personality disorders, schizophrenia, bipolar disorder and many more. Treatment of mental disorders is a very complex process, that requires from a doctor large commitment in the therapeutic process. Often, it is required to implement many different ways of treatment before reaching an optimum effect. Highly individualized character of psychiatric disorders requires that kind of treatment.