Physiologic anxiety, defined as a complex feeling of apprehension, fear, and worry, is normal. However, excessive anxiety for extended periods of time is not. When accompanied by serious pulmonary, cardiac and physical sensations, anxiety becomes unhealthy and pathologic. When pathologic, anxiety exists as a primary disorder or is associated with many neurological syndromes, medical illnesses, or other primary psychiatric illnesses, namely depression and psychosis. This home-study course examines the intricate biological, psychological, and social factors that interact with complex situations, stress, and trauma; consequently leading to clinical anxiety and related disorders. Diagnostic issues reported in various anxiety disorders, such as panic disorder, obsessive-compulsive disorder (OCD), and generalized anxiety disorder (GAD) are identified and discussed. Furthermore, differentials of anxiety disorders, and the
distinction and nomenclature of phobias are addressed.