Bipolar disorder, also called manic-depressive illness, is not as common as major depression or dysthymia.

双相情感障碍，也叫做躁郁症，并不像重度抑郁症或心境恶劣一样普遍。

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Bipolar disorder, also known as manic-depressive illness, is a brain disorder that causes unusual shifts in a person's mood, energy, and ability to function.

双相情感障碍，也叫做躁郁症，是一种脑失调，它导致个体心境，精力和功能运作方面的转变。

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In some cases, individuals with bipolar disorder may agree, when the disorder is under good control, to a preferred course of action in the event of a future manic or depressive relapse.

在一些案例中，当疾病控制得很好时，双相患者可能认可采取一些优先做法以防将来躁狂或抑郁复发。

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An extreme case of bipolar disorder or manic depression?

NEWYORKER: The Beaver

In regards to your particular question, bipolar disorder (also known as manic depression) is nothing but a description of a certain pattern of symptoms.

CNN: Can a manic episode look like a tantrum?

However, his illness had taken its toll on Zeta Jones who, in April 2011, said she had received treatment for bipolar disorder, also known as manic depression.

BBC: Profile: Catherine Zeta Jones