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Learn More: Depression

Double Depression

Double depression is an expression used to define a condition in people who experience long-term mild-to-moderate depression (dysthymia) and eventually progress to having episodes of major depression superimposed on the dysthymia. Almost always experiencing depressed mood, these individuals cycle between the mild-to-moderate lows of dysthymia and the deep lows of major depression.

To be diagnosed as having double depression, a person must have experienced at least two years of mild-to-moderate depression -- thus qualifying for the dysthymia diagnosis -- prior to the onset of major depression episodes.

Last reviewed on: July, 2009
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