Bach was a German composer of the Baroque period and virtuoso organist. His music is notable for its intellectual rigor and emotional expressiveness. Read Full Biography. 1  Overview 2  â. Biography 3  â. Compositions 4  â. Credits 5  â. Related â.
Diagnostic criteria for bipolar and related disorders are based on the specific type of disorder: 1  Bipolar I disorder. 2  Bipolar II disorder. 3  Cyclothymic disorder. 4  Other types.
Age. Bipolar disorder usually first occurs between the ages of 15 - 30 years, with an average age of onset at 25 years. However, bipolar disorder can affect people of all ages, including children. Bipolar disorder that occurs late in life often accompanies medical and neurological problems (particularly cerebrovascular disease, such as stroke). It is less likely to be associated with a family history of the disorder than earlier-onset bipolar disorder.