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Sunday, April 14, 2013

To what extent does research support a link between stress and the immune system?

There has been extensive research into the link between stress and the insubordinate carcass that shows that the link is indeed very strong with a positive correlation. The research is seen in the general adaptation syndrome, Stones audition on stressful events and the links to symptoms, Cohen et al experiment on the common cold, and Keicolt Glaser who looked into immune function.

Stress has been found to suppress the immune governing body allowing people to contract disease far faster than a person with less or no stress at heart their lives.

The General Adaptation Syndrome ( waste) was carried out by Selye who put rats down the stairs enormous stress to assess their responses. The stressors they were exposed to were bacterial infection, toxins, sensual restraint and extreme heat and cold. He called their overall reply the GAS. There are three stages of GAS, Alarm Reaction Stage, resistor Stage, and Exhaustion Stage. The Alarm reaction stage makes the ANS react to the stressor. The Resistance Stage is when all alarm systems are a full capacity so the parasympathetic nervous system calls for a more cautious use of resources. Coping strategies such as denial are used and the fight or flight response is less effective. When the stress reduces there is a period of adjustment.

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The Exhaustion Stage is when, eventually the physiological systems in the previous stages become ineffective and the initial ANS symptoms of stimulation reappear. In extreme cases, attempts to return to a normal soil fail, and the final stage occurs.

The positive evaluation of Selyes exertion is that the work started the study of understanding stress. It has been useful in predicting physiological responses to stress. The GAS provides a very useful model of the course of visible injuries and illness in cases where stress is prolonged.

The negative evaluation of the...

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