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.
About 5.7 million American adults, or about 2.6 percent of the population aged 18 and older, have bipolar disorder. Although bipolar disorder often worsens over time if untreated, most people with bipolar disorder can achieve stabilization of their mood swings and reduction of symptoms with proper treatment.