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{{Infobox Military Person
'''Stress''' is a biological term which refers to the consequences of the failure of a human or animal body to respond appropriately to [[emotion|emotional]] or [[body|physical]] threats to the organism, whether actual or imagined.<ref>''The Stress of Life'', Hans Selye, 1956.</ref> It includes a state of alarm and adrenaline production, short-term resistance as a coping mechanism, and exhaustion. It refers to the inability of a human or animal body to respond. Common stress symptoms include irritability, muscular tension, inability to concentrate and a variety of physical reactions, such as headaches and accelerated heart rate.<ref>[http://www.ehealthmd.com/library/stress/STR_whatis.html EHealthMD: What is stress] Retrieved September 3, 2008.</ref>
|name= Colin Falkland Gray
|lived= 9 November 1914 - 1 August 1995
|placeofbirth= [[Christchurch, New Zealand|Christchurch]], [[New Zealand]]
|placeofdeath= [[Waikanae]]
|image=
|caption=
|nickname=
|allegiance={{flagicon|United Kingdom}} [[United Kingdom]]
|serviceyears=
|rank= [[Wing Commander]]
|branch= {{air force|United Kingdom}}
|commands=
|unit= No. 1 Squadron RAF<br>No. 43 Squadron RAF<br>No. 616 Squadron RAF
|battles= [[World War II]]:
*[[Battle of France]]
*[[Battle of Britain]]
*[[Western Front (World War II)|Channel Front]]
|awards=[[Distinguished Service Order|DSO]]<br>[[Distinguished Flying Cross (United Kingdom)|DFC and Two Bars]]
|laterwork=
}}
'''[[Group Captain]] Colin Falkland Gray''' [[Distinguished Service Order|DSO]], [[Distinguished Flying Cross (United Kingdom)|DFC and Two Bars]] (9 November 1914 - 1 August 1995) was the top [[New Zealand]] [[Flying ace|fighter ace]] in [[World War II]]. Gray was credited with 27 aerial kills, two shared destroyed, six probable kills, with a further four probables shared.<ref>Price 1997, p. 64.</ref>


==Early life==
The term "stress" was first used by the [[endocrinologist]] [[Hans Selye]] in the 1930s to identify physiological responses in laboratory animals. He later broadened and popularized the concept to include the perceptions and responses of humans trying to adapt to the challenges of everyday life. In Selye's terminology, "stress" refers to the reaction of the organism, and "stressor" to the perceived threat. Stress in certain circumstances may be experienced positively. [[Eustress]], for example, can be an adaptive response prompting the activation of internal resources to meet challenges and achieve goals.
He and his twin brother Ken were born in [[Christchurch, New Zealand|Christchurch]]. Both joined the [[Royal Air Force]]. His brother Kenneth died in a flying accident on 1 May 1940.


==RAF Service during the Second World War==
The term is commonly used by laypersons in a metaphorical rather than literal or biological sense, as a catch-all for any perceived difficulties in life. It also became a euphemism, a way of referring to problems and eliciting sympathy without being explicitly confessional, just "stressed out". It covers a huge range of phenomena from mild irritation to the kind of severe problems that might result in a real breakdown of health. In popular usage almost any event or situation between these extremes could be described as stressful.[15]
Colin Gray joined [[No. LIV Squadron RAF|54 Squadron]] in November, 1939 and downed his first enemy aircraft, a [[Bf 109]], on 25 May 1940, though his [[Spitfire]] was badly shot up. On 13 July 1940, he shot down his second 109. Over the next two months, Gray claimed 14.5 kills, as his squadron was heavily engaged in the [[Battle of Britain]]. He was awarded the [[Distinguished Flying Cross (United Kingdom)|Distinguished Flying Cross]] (DFC) on 15 August 1940. After a brief stay with [[No. 43 Squadron RAF|43 Squadron]], he returned to his old squadron as a flight commander in January 1941. In mid-July, he was posted to [[No. 1 Squadron RAF|1 Squadron]], again as a flight commander. A month later, he took charge of 616 Squadron. On 20 September 1941, with a total of 17 confirmed victories, he was awarded the Bar to his DFC. Other postings followed.


In December 1942, he commanded 81 Squadron in the [[Middle East]]. On 13 May 1943, Gray was awarded the [[Distinguished Service Order]] (DSO) after increasing his tally by five. He was promoted to [[Wing Commander (rank)|Wing Commander]] and took over 222 Wing for the [[Italian Campaign (World War II)|Italian campaign]], where he recorded five more victories. He was awarded a second bar to the DFC. In early September, he returned to England, with a final total of 27½ confirmed victories and many probables. In July 1944, he was appointed Wing Commander Flying of the Detling Wing.
== Models ==
=== General Adaptation Syndrome ===
[[Hans Selye]] researched the effects of stress<ref>{{cite journal |last = Selye | first = Hans | authorlink = Hans Selye | title = Diseases of adaptation | journal = Wisconsin medical journal | issue = 6 | volume = 49 | url = | year = 1950 | pages = 515–6}}</ref> on rats and other animals by exposing them to unpleasant or harmful stimuli. He found that all animals presented a very similar series of reactions, broken into three stages. In 1936, he described this universal response to the stressors as the general adaptation syndrome, or GAS.<ref>{{cite journal |last = Seyle | first = Hans | authorlink = Hans Selye | title = A syndrome produced by diverse nocuous agents | journal = Nature | issue = | volume = 138| url = | year = 1936| pages = 32 | doi = 10.1038/138032a0}}</ref><ref>[http://www.chronicfatigue.org/Selye%20large.html "Selye Biologic Reaction to Stress chart"], ''Chronic Fatigue Unmasked'', by Dr. Gerald E. Poesnecker, February 1999 (ISBN 0916285618)</ref>


After the war, he continued in various command and staff posts, and was involved in the fighting in the [[Malayan Emergency]]. He retired as a [[Group Captain]] in 1961 and returned to New Zealand.
'''Alarm''' is the first stage. When the threat or stressor is identified or realized, the body's stress response is a state of alarm. During this stage adrenaline will be produced in order to bring about the [[fight-or-flight response]]. There is also some activation of the [[Hypothalamic-pituitary-adrenal axis|HPA axis]], producing [[cortisol]]. '''Resistance''' is the second stage. If the stressor persists, it becomes necessary to attempt some means of coping with the stress. Although the body begins to try to adapt to the strains or demands of the environment, the body cannot keep this up indefinitely, so its resources are gradually depleted. '''Exhaustion''' is the third and final stage in the GAS model. At this point, all of the body's resources are eventually depleted and the body is unable to maintain normal function. At this point the initial [[autonomic nervous system]] symptoms may reappear (sweating, raised heart rate etc.). If stage three is extended, long term damage may result as the capacity of glands, especially the adrenal gland, and the immune system is exhausted and function is impaired resulting in decompensation. The result can manifest itself in obvious illnesses such as [[ulcer]]s, [[Clinical depression|depression]], trouble with the [[digestive system]] or even [[cardiovascular]] problems, along with other mental illnesses.


In 1945, he married Betty Cook, with whom he had two sons and two daughters. He also wrote ''Spitfire Patrol'', an autobiography detailing his time in the RAF. Gray died in [[Waikanae]] on 1 August 1995.
[[Image:General Adaptation Syndrome.jpg|right|300px]]


==References==
===Lazarus: eustress and distress===
===Bibliography===
[[Richard Lazarus]] published in 1974 a model dividing stress into [[eustress]] and [[distress]].<ref>{{cite journal |author=Lazarus RS |title=From psychological stress to the emotions: a history of changing outlooks| year=1993| journal=Annual Review of Psychology| volume = 44| pages=1–22| doi=10.1146/annurev.ps.44.020193.000245| pmid=8434890}}<!-- Have not been able to get hold of article, should be useful for entire section--></ref> Where stress enhances function (physical or mental, such as through [[strength training]] or challenging work) it may be considered [[eustress]]. Persistent stress that is not resolved through coping or adaptation, deemed [[distress]], may lead to [[anxiety]] or withdrawal ([[clinical depression|depression]]) behavior. The difference between experiences which result in eustress or distress is determined by the disparity between an experience (real or imagined), personal expectations, and resources to cope with the stress. Alarming experiences, either real or imagined, can trigger a stress response.<ref>{{cite journal |coauthors = Joels M. & Holsboer F. | last = Ron de Kloet | first = E | date= 2005 |title = Stress and the brain: from adaptation to disease | journal = Nature Reviews Neuroscience | volume = 6 | pages = 463–475 | pmid = 15891777 | issue = 6 |doi = 10.1038/nrn1683}}</ref> Therefore, Lazarus's model argues that cognitive processes of appraisal are central in determining whether a situation is potentially threatening or harmful.<ref name="Aldwin">{{cite book | last = Aldwin | first = Carolyn | title = Stress, Coping, and Development, Second Edition | publisher = The Guilford Press | location = New York | year = 2007 | isbn = 1572308400 }}</ref>
* Price, Dr Alfred. (1997). ''Spitfire Mark I/II Aces 1939-41''. Osprey Publishing. London. ISBN 978-1-85532-627-9
* [http://www.nzfpm.co.nz/article.asp?id=gray Group Captain Colin Falkland Gray] at nzfpm.co.nz (accessed 10 August, 2007)
* [http://findarticles.com/p/articles/mi_qn4158/is_19950930/ai_n14009222 The ''London Independent'' obituary], 30 September, 1995 (accessed 10 August, 2007)


===Citations===
===Zajonc: emotional reactions precede cognitive reactions===
{{Reflist}}
[[Robert B. Zajonc]] (1984), somewhat in opposition to the Lazarus model of stress, argued that emotional reactions occur before cognitive reactions, and in fact, may be at odds with cognitive responses. This belief was consonant with the previous [[James-Lange hypothesis]] (1890, 1922), which held that the body's emotional reaction to stress occurred prior to and resulted in conscious responses. The debate has underscored the existence of two modes of reactivity, one conscious and under volitional control, and the other automatic and uncontrollable. Scholars such as Aldwin have argued for a simultaneous, parallel processing approach rather than a sequential neurological processing model where emotions come first followed by cognition, or ''[[vice versa]]''.<ref name="Aldwin"/>


==Neurochemistry and physiology==


{{DEFAULTSORT:Gray, Colin Falkland}}
The neurochemistry of the stress response is now believed to be well understood, although much remains to be discovered about how the components of this system interact with one another, in the brain and throughout in the body. In response to a stressor, [[corticotropin-releasing hormone]] (CRH) and [[arginine-vasopressin]] (AVP) are secreted into the [[hypophyseal portal system]] and activate neurons of the [[paraventricular nuclei]] (PVN) of the [[hypothalamus]]. The [[locus ceruleus]] and other [[noradrenergic]] cell groups of the [[adrenal medulla]] and [[pons]], collectively known as the LC/NE system, also become active and use brain [[epinephrine]] to execute autonomic and neuroendocrine responses, serving as a global alarm system.<ref name="tsigos">Tsigos, C. & Chrousos, G.P. (2002). Hypothalamic-pituitary-adrenal axis, neuroendocrine factors, and stress. Journal of Psychosomatic Research, 53, 865-871.</ref>
[[Category:1914 births]]
[[Category:1995 deaths]]
[[Category:Companions of the Distinguished Service Order]]
[[Category:Royal Air Force officers]]
[[Category:Recipients of the Distinguished Flying Cross]]
[[Category:New Zealand World War II flying aces]]
[[Category:British World War II flying aces]]
[[Category:Royal Air Force personnel of World War II]]


[[ja:コリン・フォークランド・グレイ]]
The [[autonomic nervous system]] provides the rapid response to stress commonly known as the [[fight-or-flight response]], engaging the [[sympathetic nervous system]] and withdrawing the [[parasympathetic nervous system]], thereby enacting cardiovascular, respiratory, gastrointestinal, renal, and endocrine changes.<ref name="tsigos"/> The [[hypothalamic-pituitary-adrenal axis]] (HPA), a major part of the [[neuroendocrine system]] involving the interactions of the [[hypothalamus]], the [[pituitary gland]], and the [[adrenal gland]]s, is also activated by release of CRH and AVP. This results in release of [[adrenocorticotropic hormone]] (ACTH) from the pituitary into the general bloodstream, which results in secretion of [[cortisol]] and other [[glucocorticoid]]s from the [[adrenal cortex]]. These corticoids involve the whole body in the organism's response to stress and ultimately contribute to the termination of the response via inhibitory feedback.<ref name="tsigos"/>

Stress can significantly affect many of the body's immune systems, as can an individual's perceptions of, and reactions to, stress. The term [[psychoneuroimmunology]] is used to describe the interactions between the mental state, nervous and immune systems, as well as research on the interconnections of these systems. Chronic stress has also been shown to impair [[developmental psychology|developmental growth]] in children by lowering the [[pituitary gland]]'s production of growth hormone, as in children associated with a home environment involving serious marital discord, [[alcoholism]], or [[child abuse]].<ref>Powell, Brasel, & Blizzard, 1967.</ref>

==Common sources==
Both negative and positive stressors can lead to stress. Some common categories and examples of stressors include:
sensory input such as [[pain]], [[Over-illumination|bright light]], or environmental issues such as a lack of control over environmental circumstances, such as food, housing, health, freedom, or mobility. Social issues can also cause stress, such as struggles with [[Conspecificity|conspecific]] or difficult individuals and [[social defeat]], or relationship [[conflict]], [[deception]], or [[break up]]s, and major events such as [[birth]] and [[death]]s, [[marriage]], and [[divorce]]. Life experiences such as poverty, [[unemployment]], depression, [[obsessive compulsive disorder]], [[health#Heavy consumption|heavy drinking]], or insufficient [[sleep]] can also cause stress. Students and workers may face stress from [[Test (student assessment)|exam]]s, project deadlines, and group projects.

Adverse experiences during [[Developmental Psychology|development]] (e.g. prenatal exposure to maternal stress,<ref>Davis et al. (June 2007). Prenatal Exposure to Maternal Depression and Cortisol Influences Infant Temperament. Journal of the American Academy of Child & Adolescent Psychiatry, v46 n6 p737.</ref><ref>O'connor, Heron, Golding, Beveridge & Glover. (June 2002). Maternal antenatal anxiety and children's behavioural/emotional problems at 4 years. Br J Psychiatry. 180:478-9.</ref> poor attachment histories,<ref name="Schore">{{cite book | last = Schore | first = Allan | title = Affect Regulation & the Repair of the Self | publisher = W.W. Norton | location = New York | year = 2003 | isbn = 0393704076 }}</ref> sexual abuse)<ref>Michael D. DeBellis, George P. Chrousos, Lorah D. Dorn, Lillian Burke, Karin Helmers, Mitchel A. Kling, Penelope K. Trickett, and Frank W. Putnam. Hypothalamic—Pituitary—Adrenal Axis Dysregulation in Sexually Abused Girls</ref> are thought to contribute to deficits in the maturity of an individual's stress response systems. One evaluation of the different stresses in people's lives is the [[Holmes and Rahe stress scale]].

==Adaptation ==
{{main|Stress management}}
Responses to stress include adaptation, [[coping (psychology)|psychological coping]] such as [[stress management]], [[anxiety]], and [[Depression (mood)|depression]]. Over the long term, distress can lead to diminished health or illness; to avoid this, stress must be [[stress management|managed]]. Stress management encompasses techniques intended to equip a person with effective coping mechanisms for dealing with psychological stress, with stress defined as a person's physiological response to an internal or external stimulus that triggers the fight-or-flight response. Stress management is effective when a person utilizes strategies to cope with or alter stressful situations. There are several ways of coping with stress, such as controlling the source of stress or learning to set limits and to say "No" to some demands that bosses or family members may make.

==History and usage==
The term "stress" had none of its current general senses before the 1950s. As a semi-psychological term referring to hardship or coercion, it dated from the 14th century. It is a form of the [[Middle English]] ''destresse'', derived via [[Old French]] from the [[Latin]] ''stringere'' – to draw tight.<ref name="Keil2004">Keil, R.M.K. (2004) [http://www.ingentaconnect.com/content/bsc/jan/2004/00000045/00000006/art00013 Coping and stress: a conceptual analysis] Journal of Advanced Nursing, 45(6), 659–665</ref> It had long been in use in [[Stress (physics)|physics]] to refer to the internal distribution of a force exerted on a material body, resulting in [[Strain (materials science)|strain]]. In the 1920s and 1930s, the term was occasionally being used in psychological circles to refer to a mental strain or unwelcome happening, and by advocates of [[holistic medicine]] to refer to a harmful environmental agent that could cause illness. [[Walter Cannon]] used it in 1934 to refer to external factors that disrupted what he called "[[homeostasis]]".

A new scientific usage developed out of [[Hans Selye|Hans Seyle's]] reports of his laboratory experiments in the 1930s. Selye started to use the term to refer not just to the agent but to the state of the organism as it responded and adapted to the environment. His theories of a universal non-specific stress response attracted great interest and contention in academic [[physiology]] and he undertook extensive research programmes and publication efforts.<ref name="Viner1999">Viner, R. (1999) [http://www.jstor.org/pss/285410 Putting Stress in Life: Hans Selye and the Making of Stress Theory] Social Studies of Science, Vol. 29, No. 3 (Jun., 1999), pp. 391-410</ref> However, while the work attracted continued support from advocates of [[psychosomatic medicine]], many in experimental physiology concluded that his concepts were too vague and unmeasurable. During the 1950s Selye turned away from the laboratory to promote his concept through popular books and lectures tours. The [[US military]] became a key center of stress research, attempting to understand and reduce combat [[neurosis]] and psychiatric casualties. Seyle wrote for both non-academic physicians and, in an international bestseller titled "Stress of Life", for the general public.

A broad [[biopsychosocial]] concept of stress and adaptation offered the promise of helping everyone achieve health and happiness by successfully responding to changing global challenges and the problems of modern [[civilisation]]. He coined the term "[[eustress]]" for positive stress, by contrast to [[distress]]. He argued that all people have a natural urge and need to work for their own benefit, a message that found favor with industrialists and governments.<ref name="Viner1999"/> He also coined the term "[[stressor]]" to refer to the causative event or stimulus, as opposed to the resulting state of stress. From the late 1960s, Selye's concept started to be taken up by academic [[psychologists]], who sought to quantify "life stress" by scoring "[[Life-Events and Difficulties Schedule|significant life events]]", and a large amount of research was undertaken to examine links between stress and disease of all kinds. By the late 1970s stress had become the medical area of greatest concern to the general population, and more basic research was called for to better address the issue. There was renewed laboratory research into the [[neuroendocrine]], [[molecular]] and [[immunological]] bases of stress, conceived as a useful [[heuristic]] not necessarily tied to Selye's original hypotheses. By the 1990s, "stress" had become an integral part of modern scientific understanding in all areas of physiology and human functioning, and one of the great metaphors of Western life.<ref name="Viner1999"/> Focus grew on stress in certain settings, such as [[workplace stress]]. [[Stress management]] techniques were developed.

Its psychological uses are frequently [[metaphorical]] rather than [[literal]], used as a catch-all for perceived difficulties in life. It also became a euphemism, a way of referring to problems and eliciting [[sympathy]] without being explicitly confessional, just "stressed out". It covers a huge range of phenomena from mild [[irritation]] to the kind of severe problems that might result in a real breakdown of [[health]]. In popular usage almost any event or situation between these extremes could be described as stressful.<ref name="Keil2004"/> The most extreme events and reactions may elicit the diagnosis of [[Posttraumatic stress disorder]] (PTSD), an anxiety disorder that can develop after exposure to one or more terrifying events that threatened or caused grave physical harm. PTSD is a severe and ongoing emotional reaction to an extreme psychological trauma; as such, it is often associated with soldiers, police officers, and other emergency personnel. This stressor may involve viewing someone's actual death, a threat to the patient's or someone else's life, serious physical injury, or threat to physical or psychological integrity, overwhelming usual psychological defenses coping. In some cases it can also be from profound psychological and emotional trauma, apart from any actual physical harm. Often, however, the two are combined.

==See also==
*[[Jon Kabat-Zinn]]
*[[Burnout (psychology)]]
*[[Hypothalamic-pituitary-adrenal axis]]
*[[Oxidative stress]]
*[[Compassion fatigue]]

== References ==
{{Refimprove|date=September 2007}}
{{reflist}}
{{refbegin}}
*Petersen, C., Maier, S.F., Seligman, M.E.P. (1995). Learned Helplessness: A Theory for the Age of Personal Control. New York: Oxford University Press. ISBN 0-19-504467-3
*Seligman, M.E.P. (1975). Helplessness: On Depression, Development, and Death. San Francisco: W.H. Freeman. ISBN 0-7167-2328-X
*Seligman, M.E.P. (1990). Learned Optimism. New York: Knopf. (Reissue edition, 1998, Free Press, ISBN 0-671-01911-2).
*Holmes, T.H. and Rahe, R.H. (1967). The social readjustments rating scales. Journal of Psychosomatic Research 11:213-218.
{{refend}}

==External links==
*[http://www.stress.org/topic-definition-stress.htm The American Institute of Stress]
* [http://www.umassmed.edu/Content.aspx?id=41254 University of Massachusetts Medical School Stress Reduction Program]
*[http://osha.europa.eu/publications/reports/203/index.htm "Research on Work-Related Stress"], [[European Agency for Safety and Health at Work]] (EU-OSHA)
*[http://osha.europa.eu/publications/magazine/5/index.htm "Working on Stress"], [[European Agency for Safety and Health at Work]] (EU-OSHA)
*[http://www.sciam.com/article.cfm?chanID=sa006&articleID=00083A00-318C-1F30-9AD380A84189F2D7 "Taming Stress"], ''Scientific American'', September 2003

[[Category:Stress|*]]

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Revision as of 20:10, 10 October 2008

Colin Falkland Gray
AllegianceUnited Kingdom United Kingdom
Service/branch Royal Air Force
RankWing Commander
UnitNo. 1 Squadron RAF
No. 43 Squadron RAF
No. 616 Squadron RAF
Battles/warsWorld War II:
AwardsDSO
DFC and Two Bars

Group Captain Colin Falkland Gray DSO, DFC and Two Bars (9 November 1914 - 1 August 1995) was the top New Zealand fighter ace in World War II. Gray was credited with 27 aerial kills, two shared destroyed, six probable kills, with a further four probables shared.[1]

Early life

He and his twin brother Ken were born in Christchurch. Both joined the Royal Air Force. His brother Kenneth died in a flying accident on 1 May 1940.

RAF Service during the Second World War

Colin Gray joined 54 Squadron in November, 1939 and downed his first enemy aircraft, a Bf 109, on 25 May 1940, though his Spitfire was badly shot up. On 13 July 1940, he shot down his second 109. Over the next two months, Gray claimed 14.5 kills, as his squadron was heavily engaged in the Battle of Britain. He was awarded the Distinguished Flying Cross (DFC) on 15 August 1940. After a brief stay with 43 Squadron, he returned to his old squadron as a flight commander in January 1941. In mid-July, he was posted to 1 Squadron, again as a flight commander. A month later, he took charge of 616 Squadron. On 20 September 1941, with a total of 17 confirmed victories, he was awarded the Bar to his DFC. Other postings followed.

In December 1942, he commanded 81 Squadron in the Middle East. On 13 May 1943, Gray was awarded the Distinguished Service Order (DSO) after increasing his tally by five. He was promoted to Wing Commander and took over 222 Wing for the Italian campaign, where he recorded five more victories. He was awarded a second bar to the DFC. In early September, he returned to England, with a final total of 27½ confirmed victories and many probables. In July 1944, he was appointed Wing Commander Flying of the Detling Wing.

After the war, he continued in various command and staff posts, and was involved in the fighting in the Malayan Emergency. He retired as a Group Captain in 1961 and returned to New Zealand.

In 1945, he married Betty Cook, with whom he had two sons and two daughters. He also wrote Spitfire Patrol, an autobiography detailing his time in the RAF. Gray died in Waikanae on 1 August 1995.

References

Bibliography

Citations

  1. ^ Price 1997, p. 64.
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