Bipolar disorder, also known as manic-depressive illness, is a mental health condition that causes extreme mood swings that alternate between manic or hypomanic episodes and depressive episodes. These mood swings can have a significant impact on a person's daily life, relationships, and ability to function.
Manic or hypomanic episodes are characterized by an elevated or irritable mood, increased energy, decreased need for sleep, grandiosity or overconfidence, racing thoughts, and impulsive behavior. Depressive episodes are characterized by a persistent low mood, loss of interest in activities, fatigue, sleep disturbances, and feelings of worthlessness or guilt.
The exact cause of bipolar disorder is not fully understood, but it is believed to be related to genetics, brain chemistry, and environmental factors. Bipolar disorder can be a chronic condition that requires ongoing treatment, including medication and therapy.