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Bipolar I/II Disorder

What Is Bipolar I/II Disorder?

Bipolar Disorder I: The essential feature of a manic episode is a distinct period during which there is an abnormally, persistently elevated, expansive, or irritable mood and persistently increased activity or energy that is present for most of the day, nearly every day, for a period of at least 1 week (or any duration if hospitalization in necessary), accompanied by at least three additional symptoms from Criterion B. [...] Mood in a manic episode is often described as euphoric, excessively cheerful, high, or "feeling on top of the word." In some cases, the mood is of such a highly infectious quality that is easily recognized for interpersonal, sexual, or occupational interactions.*

 

Bipolar Disorder II: Bipolar II disorder is characterized by a clinical course of recurring mood episodes consisting of one or more major depressive episodes and at least one hypomaniac episode. The major depressive episode must last at least 2 weeks, and the hypomaniac episode must last at least 4 days, to meet the diagnostic criteria. During the mood episode(s), the requisite number of symptoms must be present most of the day, nearly every day, and represent a noticeable change from usual behavior and functioning.**

 

*Diagnostic and Statistical Manual of Mental Disorders: DSM-5. 5th ed. Washington, D.C.: American Psychiatric Association, 2013. 127. Print
 

**Diagnostic and Statistical Manual of Mental Disorders: DSM-5. 5th ed. Washington, D.C.: American Psychiatric Association, 2013. 135. Print