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Amygdala (in red) brain structures linked to anxiety disorders. The pathophysiology of GAD is an active and ongoing area of research often involving the intersection of genetics and neurological structures. [9] Generalized anxiety disorder has been linked to changes in functional connectivity of the amygdala and its processing of fear and ...
Anxiety is an emotion 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]
Stress is highly individualized and depends on variables such as the novelty, rate, intensity, duration, or personal interpretation of the input, and genetic or experiential factors. Both acute and chronic stress can intensify morbidity from anxiety disorders. One person's fun may be another person's stressor.
Anxiety disorders affect nearly 30% of adults at some point in their lives, with an estimated 4% of the global population currently experiencing an anxiety disorder. However, anxiety disorders are treatable, and a number of effective treatments are available. [11] Most people are able to lead normal, productive lives with some form of treatment ...
Preoperational anxiety, or preoperative anxiety, is a common reaction experienced by patients who are admitted to a hospital for surgery. [1] It can be described as an unpleasant state of tension or uneasiness that results from a patient's doubts or fears before an operation.
Pathological anxiety and chronic stress lead to structural degeneration and impaired functioning of the hippocampus. [ 71 ] It has long been believed that negative affective states, such as feelings of anxiety and depression, could influence the pathogenesis of physical disease, which in turn, have direct effects on biological process that ...
Acute stressful situations where the stress experienced is severe is a cause of change psychologically to the detriment of the well-being of the individual, such that symptomatic derealization and depersonalization, and anxiety and hyperarousal, are experienced. [8]
The symptoms of anxiety and depression disorders can be very similar. A diagnosis of mixed anxiety–depressive disorder as opposed to a diagnosis of depression or an anxiety disorder can be difficult. Due to this, it has long been a struggle to find a singular set of criteria to use in the diagnosis of mixed-anxiety depressive disorder. [3]