n. in psychiatry, refers to a major affective disorder marked by episodes of mania and depression. These episodes are often alternating but they can also sometimes be mixed. Characterized by unusual shifts in mood, activity, and energy level. Also called bipolar affective disorder- formerly manic-depressive disorder.
BIPOLAR DISORDERS: “Bipolar Disorders need to be diagnosed by an expert, because they are not only a psychiatric illness but also a brain disorder. “