[Bipolar mood disorders].

Bipolar mood disorders affect 2-4% of the population and have a high rate of recurrence. Manic and depressive episodes can be severe, and despite treatment there are often more residual symptoms and functional impairment between episodes than generally assumed. In recent years some advances have been made in pharmacotherapy and psychotherapy. However, insight into the neurobiological and genetical aspects of bipolar mood disorders is still limited.