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  2. Anxiety disorder - Wikipedia

    en.wikipedia.org/wiki/Anxiety_disorder

    12% per year [ 4 ][ 7 ] Anxiety disorders are a group of mental disorders characterized by significant and uncontrollable feelings of anxiety and fear [ 2 ] such that a person's social, occupational, and personal functions are significantly impaired. [ 2 ] Anxiety may cause physical and cognitive symptoms, such as restlessness, irritability ...

  3. Anxiety - Wikipedia

    en.wikipedia.org/wiki/Anxiety

    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 ...

  4. Generalized anxiety disorder - Wikipedia

    en.wikipedia.org/wiki/Generalized_anxiety_disorder

    Generalized anxiety disorder (GAD) is a mental and behavioral disorder, [5] specifically an anxiety disorder characterized by excessive, uncontrollable and often irrational worry about events or activities. [6] Worry often interferes with daily functioning, and individuals with GAD are often overly concerned about everyday matters such as ...

  5. Causes of mental disorders - Wikipedia

    en.wikipedia.org/wiki/Causes_of_mental_disorders

    Many professionals believe that the cause of mental disorders is the biology of the brain and the nervous system. Mind mentions genetic factors, long-term physical health conditions, and head injuries or epilepsy (affecting behavior and mood) as factors that may trigger an episode of mental illness.

  6. Panic disorder - Wikipedia

    en.wikipedia.org/wiki/Panic_disorder

    Panic disorder. Panic disorder is a mental and behavioral disorder, [5] specifically an anxiety disorder characterized by reoccurring unexpected panic attacks. [1] Panic attacks are sudden periods of intense fear that may include palpitations, sweating, shaking, shortness of breath, numbness, or a feeling that something terrible is going to ...

  7. Epigenetics of anxiety and stress–related disorders - Wikipedia

    en.wikipedia.org/wiki/Epigenetics_of_anxiety_and...

    However, they have been shown to cause DNA demethylation, possibly due to an increase in the levels of TET1, which is a demethylating enzyme. [84] In the human peripheral cells of patients with anxiety disorders and in animal models of anxiety disorders, genes such as GAD1, NR3C1, BDNF, MAOA, HECA, and FKBP5 are shown to be hypermethylated. As ...

  8. Social anxiety disorder - Wikipedia

    en.wikipedia.org/wiki/Social_anxiety_disorder

    The fear, anxiety, or avoidance is not attributable to the physiological effects of a substance (e.g., an addictive substance, a medication) or another medical condition. The fear, anxiety, or avoidance is not better explained by the symptoms of another mental disorder, such as panic disorder, body dysmorphic disorder, or autism spectrum disorder.

  9. Mixed anxiety–depressive disorder - Wikipedia

    en.wikipedia.org/wiki/Mixed_anxiety–depressive...

    There are multiple possible causes for mixed anxiety-depressive disorder, but they can be separated into three main categories: biological, psychological, and environmental factors. Biological factors are factors such as genetic predisposition and issues with neurotransmitters. Scientists have suggested a link between anxiety and an overactive ...

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