Signs & Symptoms: Bipolar Disorder

Bipolar disorder, also known as manic-depressive illness, is a brain disorder that causes unusual shifts in mood, energy, activity levels, and the ability to carry out day-to-day tasks. Symptoms of bipolar disorder are severe. They are different from the normal ups and downs that everyone goes through from time to time. Bipolar disorder symptoms can result in damaged relationships, poor job or school performance, and even suicide. But bipolar disorder can be treated, and people with this illness can lead full and productive lives.

People with bipolar disorder experience unusually intense emotional states that occur in distinct periods called "mood episodes." Each mood episode represents a drastic change from a person’s usual mood and behavior. An overly joyful or overexcited state is called a manic episode, and an extremely sad or hopeless state is called a depressive episode. Sometimes, a mood episode includes symptoms of both mania and depression. This is called a mixed state. People with bipolar disorder also may be explosive and irritable during a mood episode.

Extreme changes in energy, activity, sleep, and behavior go along with these changes in mood. Symptoms of bipolar disorder are described below.

Symptoms of mania or a manic episode include:

Symptoms of depression or a depressive episode include:

Mood Changes A long period of feeling "high," or an overly happy or outgoing mood Extreme irritability Behavioral Changes Talking very fast, jumping from one idea to another, having racing thoughts Being easily distracted Increasing activities, such as taking on new projects Being overly restless Sleeping little or not being tired Having an unrealistic belief in one's abilities Behaving impulsively and engaging in pleasurable, high-risk behaviors

Mood Changes An overly long period of feeling sad or hopeless Loss of interest in activities once enjoyed, including sex. Behavioral Changes Feeling tired or "slowed down" Having problems concentrating, remembering, and making decisions Being restless or irritable Changing eating, sleeping, or other habits Thinking of death or suicide, or attempting suicide.