RT Book, Section A1 Nithyanandam, Srikanth A1 Michels, Philip J. A2 South-Paul, Jeannette E. A2 Matheny, Samuel C. A2 Lewis, Evelyn L. SR Print(0) ID 1178489308 T1 Anxiety Disorders T2 CURRENT Diagnosis & Treatment: Family Medicine, 5e YR 2020 FD 2020 PB McGraw Hill PP New York, NY SN 9781260134896 LK accessmedicine.mhmedical.com/content.aspx?aid=1178489308 RD 2024/04/24 AB Anxiety is a diffuse, unpleasant, and often vague subjective feeling of apprehension accompanied by objective symptoms of autonomic nervous system (ANS) arousal. The experience of anxiety is associated with a sense of danger or a lack of control over events. The psychological component varies from individual to individual and is strongly influenced by personality and coping mechanisms.