9781422272381

A mood is an emotional state of mind. Mood is not the same as personality. Personality is much more constant, whereas mood can change.

Long-term highs and lows in mood, such as clinical depression and bipolar disorder, will often be classified as types of mood disorders. “Modern approaches to [mood disorders]—be they biological, cognitive, or social—have focused on just about everything but mood,” explains Jonathan Rottenberg, a professor of psychology at the University of South Florida and author of The Depths: The Evolutionary Origins of the Depression Epidemic:

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Behavioral Disorders: Mood Disorders