General Anxiety Disorder

Differences Between Anxiety and Stress:
          Stress
               -a response of an organism to any demand for change that alters the organism’s equilibrium
               -caused by pressures and demands of life
               -“good stress” can improve performance
               -situational – depends on stressors
          Anxiety:
               -feeling of apprehensiveness, worry, and often fear
               -caused by psychological/physiological disposition
               -anxiety costs our bodies energy
               -continual – persistent worry

Both stress and anxiety are characterized by:
              -Increased heart rate, increased respiration, sweating, shaking, aches and pains, feeling overwhelmed, 
               nervousness, changes in concentration

General Anxiety Disorder (GAD):
               -a “person is tense, apprehensive, and in a state of autonomic nervous system arousal”

Robin Marantz: 
               -“Anxiety is not fear, exactly, because fear is focused on something right in front of you, a real and 
                  objective danger. It is instead a kind of fear gone wild, a generalized sense of dread about something 
                  out there that seems menacing — but that in truth is not menacing, and may not even be out there. If 
                  you’re anxious, you find it difficult to talk yourself out of this foreboding; you become trapped in an 
                  endless loop of what-ifs.”

Psychological symptoms:
               -exaggerated worry and uneasiness (sometimes for no obvious reason)
               -anxiety is disproportionate to the situation
               -overly concerned about everyday problems
               -not just stress and nervousness, but also fear
               -difficulty concentrating, relaxing, and sleeping

Physical symptoms:
               -fatigue, headaches, muscle tension, trembling, irritability, sweating, nausea, feeling out of breath, 
                easily startled
                       -essentially everything you feel when you’re nervous or scared, but individuals with GAD feel them 
                        almost constantly

The (Vicious) Cycle of Anxiety

http://londoncognitive.com/2011/03/10/the-vicious-cycle-of-anxiety/

More about GAD:
               -Range
                        -mild anxiety can function relatively normally
                        -severe anxiety can’t do simple, daily tasks
               -develops gradually usually between childhood and middle age
               -can depend on personality types
               -has been shown to be hereditary
               -treated with medication or cognitive-behavioral therapy

Evolutionary Significance
               -individuals with GAD have more worry and fear than most people, but, as a result, they are also more 
                apprehensive and cautious in nearly every situation
               -this apprehensiveness allows them to avoid certain dangers and improve their likelihood of survival, 
                which increases their overall fitness

Helpful Links:

http://www.beststressanxietyrelief.com/stress-and-anxiety/the-difference-between-anxiety-and-stress-part-1.html

http://www.nimh.nih.gov/health/publications/anxiety-disorders/generalized-anxiety-disorder-gad.shtml

http://psychcentral.com/blog/archives/2009/10/04/what-is-anxiety/





Creighton University Honors Program
Sources and Methods: Evolutionary Psychology
Omaha, NE 68178
April 29, 2011
Editors: Kelly Dean, Adam Grahn, Nathan Messbarger