Bipolar disorder, formerly called manic depression, is a mood disorder characterized by unusual changes in mood and behavior, also known as "cycling." A person with bipolar usually cycles between highs and lows. The range of these variances helps doctors determine whether individuals have bipolar I or bipolar II.


1. Statistics

Approximately 2.8% of adults in the United States experience bipolar disorder each year, and of that, roughly 83% are classified as severe. Men and women are affected equally. About two-thirds of these individuals have a close relative, often a parent or sibling, with bipolar disorder.

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