Search results
Results from the WOW.Com Content Network
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. [10] Generalized anxiety disorder has been linked to changes in functional connectivity of the amygdala and its processing of fear and ...
Psychological causes can include an anxiety disorder, depression, panic disorder, or bipolar disorder. A sense of impending doom often precedes or accompanies a panic attack. Physiological causes could include a pheochromocytoma, heart attack, blood transfusion, anaphylaxis, [1] or use of some psychoactive substances. [2]
Titin [5] (/ ˈ t aɪ t ɪ n /; also called connectin) is a protein that in humans is encoded by the TTN gene. [ 6 ] [ 7 ] The protein, which is over 1 μm in length, [ 8 ] functions as a molecular spring that is responsible for the passive elasticity of muscle .
Like adults, children can experience anxiety disorders; between 10 and 20 percent of all children will develop a full-fledged anxiety disorder prior to the age of 18, [107] making anxiety the most common mental health issue in young people. Anxiety disorders in children are often more challenging to identify than their adult counterparts, owing ...
No definitive cause of tic disorders has been declared, but for the most part, the cause lies within biological, chemical, or environmental factors. Studies have shown that abnormal neurotransmitters, such as dopamine and serotonin, which are active in chemical messages in the brain, can serve as a cause of tic disorders.
However, they do not cause any real physical harm. Previous studies have suggested that those who suffer from anxiety-related disorders (e.g., panic disorder) are at higher risk of suicide. [16] In Europe, approximately 3% of the population has a panic attack in a given year, while in the United States, they affect about 11%. [2]
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]
More generally, negative or stressful life events have been implicated in the development of a range of disorders, including mood and anxiety disorders. [75] [76] The main risks appear to be from the accumulation of such experiences over time, although a single major trauma can sometimes lead to disorders, especially post-traumatic stress disorder.