Manic-depression disorder, also known as bipolar disorder, is a severe mental disorder involving manic episodes that are usually accompanied by episodes of depression. It is a chronic mental disease that affects over two million adults in the United States, which is about one percent of the population over the age of eighteen. Symptoms of the disorder often appear in adolescence or early adulthood, although it can sometimes start in early childhood or as late as the 40s or 50s, and could persist for the sufferer's entire life. …
