Bipolar disorder is a mood disorder characterized by periods of depression and mania. Approximately 2% of the population is affected. Causes include genetics and stressful life events. Symptoms of mania include increased energy, racing thoughts, and decreased need for sleep while depressive symptoms include low mood, loss of motivation, and suicidal thoughts. Treatment involves medication like mood stabilizers and antidepressants as well as psychotherapy. Managing the condition requires education, recognizing early warning signs of episodes, adhering to treatment, and developing a support system.