Bipolar disorder is a chronic mental illness that causes dramatic shifts in a person’s mood, energy and ability to think clearly. People with bipolar have high and low moods, known as mania and depression, which differ from the typical ups and downs most people experience. If left untreated, the symptoms usually get worse. However, with a strong lifestyle that includes self-management and a good treatment plan, many people live well with the condition. With mania, people may feel extremely irritable or euphoric. People living with bipolar may experience several extremes in the shape of agitation, sleeplessness and talkativeness or sadness and hopelessness. They may also have extreme pleasure-seeking or risk-taking behaviors. People’s symptoms and the severity of their mania or depression vary widely. Although bipolar disorder can occur at any point in life, the average age of onset is 25. Every year, 2.9% of the U.S. population is diagnosed with bipolar disorder, with nearly 83% of cases being classified as severe. Bipolar disorder affects men and women equally.