Anxiety is a complex combination of negative emotions that includes fear, apprehension and worry, and is often accompanied by physical sensations such as palpitations, nausea, chest pain and/or shortness of breath.

Anxiety is often described as having cognitive, somatic, emotional, and behavioral components (Seligman, Walker & Rosenhan, 2001). The cognitive component entails expectation of a diffuse and uncertain danger. Somatically the body prepares the organism to deal with threat (known as an emergency reaction); blood pressure and heart rate are increased, sweating is increased, bloodflow to the major muscle groups is increased, and immune and digestive system functions are inhibited. Externally, somatic signs of anxiety may include pale skin, sweating, trembling, and pupillary dilation. Emotionally, anxiety causes a sense of dread or panic and physically causes nausea, and chills. Behaviorally, both voluntary and involuntary behaviors may arise directed at escaping or avoiding the source of anxiety. These behaviors are frequent and often maladaptive, being most extreme in anxiety disorders. However, anxiety is not always pathological or maladaptive: it is a common emotion along with fear, anger, sadness, and happiness, and it has a very important function in relation to survival.

Neural circuitry involving the amygdala and hippocampus is thought to underlie anxiety (Rosen & Schulkin, 1998). When confronted with unpleasant and potentially harmful stimuli such as foul odors or tastes, PET-scans show increased bloodflow in the amygdala (Zald & Pardo, 1997; Zald, Hagen & Pardo, 2002). In these studies, the participants also reported moderate anxiety. This might indicate that anxiety is a protective mechanism designed to prevent the organism from engaging in potentially harmful behaviors such as feeding on rotten food.

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Clonazepam Use For Anxiety Important Information | Anxiety: Child anxiety disorder is one of the most common me.. http://bit.ly/2yRFR1
_Panic_Attacks_ (Jonathan Hawley) Sat, 07 Nov 2009 22:00:41 -0000
Clonazepam Use For Anxiety Important Information | Anxiety: Child anxiety disorder is one of the most common me.. http://bit.ly/2yRFR1
Need to get in the shower. Starting to feel the anxiety starting already. I think I am socially inept.
fearlessknitter (Susan Taliaferro) Sat, 07 Nov 2009 21:58:51 -0000
Need to get in the shower. Starting to feel the anxiety starting already. I think I am socially inept.
what? RT @drmichaelcraig: @lindsaylou13 I recently came across an anxiety and panic cure with free video that u might like - http://bit...
lindsaylou13 (lindsay) Sat, 07 Nov 2009 21:58:29 -0000
what? RT @drmichaelcraig: @lindsaylou13 I recently came across an anxiety and panic cure with free video that u might like - http://bit...
Need for coffee + has anxiety = Mike
My_Name_Is_Mike (Michael Denny) Sat, 07 Nov 2009 21:56:55 -0000
Need for coffee + has anxiety = Mike
@lindsaylou13 I recently came across an anxiety and panic cure with free video that u might like - http://bit.ly/38xeSP
drmichaelcraig (Michael Craig) Sat, 07 Nov 2009 21:56:05 -0000
@lindsaylou13 I recently came across an anxiety and panic cure with free video that u might like - http://bit.ly/38xeSP
Having a preflight beer. Dulls the anxiety. #DesignTalk http://bit.ly/1auzNO
wFreelanceTalk (Design Talk Live w:F) Sat, 07 Nov 2009 21:54:45 -0000
Having a preflight beer. Dulls the anxiety. #DesignTalk http://bit.ly/1auzNO

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