Someone who alternates between episodes of depression and mania is said to have

A) bipolar disorder.
B) schizophrenia.
C) unipolar disorder.
D) reactive depression.

Bipolar Disorder

A psychological disorder identified by severe fluctuations in mood, which involve high points of mania or hypomania and low points of depression.

Depression

A mood disorder typified by ongoing dejection or indifference toward life’s activities, profoundly impairing everyday functionality.

Mania

A mental state characterized by excessively high energy levels, euphoria, hyperactivity, and sometimes delusions of grandeur, often seen in bipolar disorder.