London Tube Underground Map
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Size: 1256 x 836 189 kB
Map Of London Underground Tube Stations
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London Tube Map Underground for Antoni ; Dantzer and Kelly The suppression of the immune system caused by increased blood-circulating cortisol serum or s-cortisol can make a person vulnerable to infection. However, it has been noted following a review of evidence relating to endocrine responses in stressful situations, that cortisol activity undergoes extinction when exposed to chronic stress or to repeated acute stressors Rose , cited in Kasl Nicolson and van Diest HPA activation also elevates the production of growth hormones and prolactin, beta endorphins and encephalin, which are also found in the brain in response to stress and are thought to play a role in immune-related disease and in problems such as depression. Beta endorphins have a useful analgesic pain-killing function and as such may explain why people can endure high levels of pain until they succeed in escaping stressful situations or completing demanding tasks for example, soldiers with extreme injuries have been known to crawl long distances to receive help, and athletes can complete races in spite of damaged muscles e.g. Wall These responses within the autonomic nervous system and the endocrine hormonal system work together to prepare our bodies to meet the demands of our environment. Our autonomic nervous system may work behind the scenes’, but its functions are essential to basic human responses. The duration of some of the stress responses, such as the release of cortisol, influences whether the responses are beneficial to the organism or not. London Tube Map Underground 2016.