Anxiety is an emotion which is characterised by an unpleasant state of inner turmoil and includes feelings of dread over anticipated events.[1][2][3] Anxiety is different from fear in that fear is defined as the emotional response to a present threat, whereas anxiety is the anticipation of a future one.[4] It is often accompanied by nervous behavior such as pacing back and forth, somatic complaints, and rumination.[5]
Anxiety is a feeling of uneasiness and worry, usually generalized and unfocused as an overreaction to a situation that is only subjectively seen as menacing.[6] It is often accompanied by muscular tension,[7] restlessness, fatigue, inability to catch one's breath, tightness in the abdominal region, nausea, and problems in concentration. Anxiety is closely related to fear,[3] which is a response to a real or perceived immediate threat (fight-or-flight response); anxiety involves the expectation of a future threat including dread.[7] People facing anxiety may withdraw from situations which have provoked anxiety in the past.[8]
The emotion of anxiety can persist beyond the developmentally appropriate time-periods in response to specific events, and thus turning into one of the multiple anxiety disorders (e.g. generalized anxiety disorder, panic disorder).[9][10] The difference between anxiety disorder (as mental disorder) and anxiety (as normal emotion), is that people with an anxiety disorder experience anxiety excessively or persistently during approximately 6 months, or even during shorter time-periods in children.[7] Anxiety disorders are among the most persistent mental problems and often last decades.[11] Anxiety can also be experienced within other mental disorders, e.g., obsessive-compulsive disorder, post-traumatic stress disorder.[12][13]
^ abChand SP, Marwaha R (2022). "Anxiety". StatPearls. Treasure Island (FL): StatPearls Publishing. PMID29262212. Archived from the original on 2022-06-21. Retrieved 2022-12-15. Anxiety is linked to fear and manifests as a future-oriented mood state that consists of a complex cognitive, affective, physiological, and behavioral response system associated with preparation for the anticipated events or circumstances perceived as threatening.