Anxiety Disorders

Anxiety Disorders are a group of mental disorders characterized by significant feelings of anxiety and fear. Anxiety is a worry about future events, and fear is a reaction to current events. These feelings may cause physical symptoms, such as a fast heart rate and shakiness.

Changes in anxiety disorder presentation across the lifespan. (Dialogues Clin Neurosci. 2011 Dec; 13(4): 381–399.) Fig. 1