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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Vitamin C and the common cold ： ウィキペディア英語版 Vitamin C and the common cold The common cold is caused by several groups of viruses including rhinoviruses, coronaviruses and respiratory syncytial virus. Colds are the leading cause of doctor's visits and the number one reason for absences from work and school. While human and animal studies have shown that vitamin C does significantly improve immune function, over 40 years of research suggests that routine vitamin C supplementation does not prevent the common cold but modestly reduces its duration and severity in the general population, and halves the risk of catching a cold in people exposed to extreme physical stress, while the few therapeutic trials of vitamin C treatment of the common cold have been inconsistent.〔〔 ==Origin== In the 1970s, Linus Pauling argued that vitamin C could significantly decrease the incidence of the common cold, which spurred a widespread belief that consuming more vitamin C will reduce the risk of catching a cold and reduce its severity.〔(【引用サイトリンク】url=http://lpi.oregonstate.edu/infocenter/paulingrec.html )〕 Spurred by Pauling's claims, NIH conducted one of the first double-blind, placebo-controlled studies of vitamin C. The results showed a moderate decrease in duration and severity of colds; however, a post-trial analysis by the authors suggested to them that the results may have been attributable to a failure of the double-blind protocol. A subsequent meta-analysis found only very minor reduction in duration, and the authors concluded that vitamin C had no value in treating the common cold. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Vitamin C and the common cold」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.