An Episodic Mood Disorder
Bipolar Disorder Is More Than Ordinary Mood Changes
Everyone experiences emotional changes. A person may feel energetic and confident one day and tired, discouraged, or irritable on another day. These ordinary changes do not automatically indicate bipolar disorder.
Bipolar disorder involves identifiable periods in which a person’s mood, energy, activity, sleep, thoughts, speech, and behavior become noticeably different from their usual functioning.
Episodes may last for days or weeks. Symptoms are generally present for much of the day and may become noticeable to family members, friends, coworkers, teachers, or other people who know the person well.
Some people experience long periods of emotional stability between episodes. Others continue to experience symptoms, milder changes, or difficulty functioning between more recognizable episodes.
Bipolar disorder is identified by the complete pattern of mood episodes over time—not by one emotional reaction, one difficult day, or a person simply changing their mind.