Mood disorders include characteristics of either depression or mania or both, often in a fluctuating pattern. In their severer forms, these disorders include the bipolar disorders and major depressive disorder. In general, two major, or severe, mood disorders are recognized: bipolar disorder and major depression. Bipolar disorder (previously known as manic-depressive disorder) is characterized by an elated or euphoric mood, quickened thought and accelerated, loud, or voluble speech, overoptimism and heightened enthusiasm and confidence, inflated self-esteem, heightened motor activity, irritability, excitement, and a decreased need for sleep. Depressive mood swings typically occur more often and last longer than manic ones, ...(100 of 23136 words)
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