唔...关於"受寒是否容易感冒"。 我查询资料後没有结论，但我想可以把资料列出来，供各位读过後自行判断。 我希望我的摘录能够尽可能呈现出资料的原意，但如果各位愿意读原始资料当然更好。 ========== Harrison's Online，Chapter 179. ( http://www.accessmedicine.com/content.aspx?aID=2895546 ) 关於Rhinovirus Infections的部份，写到： "Despite anecdotal observations, exposure to cold temperatures, fatigue, and sleep deprivation have not been associated with increased rates of rhinovirus-induced illness in volunteers, although some studies have suggested that psychologically defined "stress" may contribute to development of symptoms." 但并没有指明这些Study到底是哪些。 ========== 《Acute cooling of the feet and the onset of common cold symptoms 》 Johnson C and Eccles R. Family Practice 2005; 22: 608–613. ( http://fampra.oxfordjournals.org/cgi/content/full/22/6/608 ) 实验组把脚泡冰水，对照组不做，各90人。 在泡冰水後马上调查(流鼻水,鼻塞,喉咙痛,喷嚏,咳嗽，各0~3分)，两组无差别。 但之後第1,2,3,4/5天各调查一次，实验组的总分较高，达到显着。 这篇Paper在Introduction提到： "studies involving inoculation of cold viruses into the nose and periods of cold exposure have failed to demonstrate any effect of cold exposure on susceptibility to infection with common cold viruses. 6–8 " 但reference 第6-8篇大概是由於年代久远(1965, 58, 68)，没有电子档可以线上查阅。 7跟8在discussion再次被提到： "Laboratory studies using viral challenge and cold exposure do not provide any evidence that chilling increases susceptibility to the development of common cold symptoms7,8 but these studies do not mimic the natural exposure to common cold viruses and they can be criticised for the small numbers of subjects used to power the studies." 这篇Paper的结论： In summary the results of the present study support the folklore that exposure to chilling may cause the onset of common cold symptoms, perhaps by some change in respiratory defence caused by reflex vasoconstriction of the blood vessels of the upper airways. Further studies in this area are needed to determine if the development of common cold symptoms following cold exposure are associated with infection. 但Discussion中也有提到，本篇研究的目标是symptoms。 泡冰水到底是增加了感染率，或者是使已被感染者的症状加重，需要进一步的研究。 ========== -- 看哪，这论证是极好的：苏格拉底是人，凡造物都难免要朽坏，所以末了我们知道，苏格 拉底总要落到死里面了。从亚里士多德以来的每一个逻辑学家，没有一个不欢喜这个论证 的。亚里士多德明白的告诉了我们论证形式的道理，因了这个缘故，我们便尊他为逻辑学 的王。 --

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