Which disorder is defined as an illness with unusual shifts in mood, energy, activity levels, and communication?

• A. Panic Disorder
• B. OCD
• C. Schizophrenia
• D. Bipolar Disorder

Answer: (D)

Bipolar disorder is defined by episodes of unusually shifting mood, energy, activity levels, and communication. This means people experience distinct mood states, such as manic or hypomanic episodes with high energy, rapid speech, and heightened activity, alternating with depressive episodes marked by low energy, withdrawal, and slower communication. The idea is that these swings are more than typical mood changes and interfere with daily functioning.

Panic disorder involves sudden, intense fear and physical symptoms like pounding heart and shortness of breath during panic attacks. OCD features intrusive thoughts (obsessions) and repetitive behaviors (compulsions). Schizophrenia includes psychotic symptoms such as delusions, hallucinations, and disorganized thinking. The description in the question best matches bipolar disorder because it centers on dramatic mood and energy shifts across states, affecting how a person talks and acts.