Which statement best distinguishes an anxiety disorder from a normal stress reaction?

• A. Anxiety disorder is characterized by brief, situational worry.
• B. Normal stress lasts for years.
• C. Anxiety disorder involves uncontrollable worry for a few days.
• D. An anxiety disorder involves excessive, uncontrollable worry for at least 6 months with functional impairment.

Answer: (D)

Differentiating pathological anxiety from a normal stress reaction hinges on duration and impact on daily life. Normal stress is a temporary, proportionate response to a real situation and typically doesn’t cause significant disruption to functioning. An anxiety disorder, on the other hand, involves excessive, difficult-to-control worry that lasts far beyond typical stress, often across multiple domains, and leads to clear impairment in social, occupational, or other areas of functioning. The defining threshold is worry that is excessive and uncontrollable for at least six months with functional impairment. That combination—prolonged duration and meaningful impairment—best distinguishes a disorder from normal stress. The other statements describe worry that is brief, tied to a single event, or not lasting long enough, which does not reflect the disorder pattern.