Chills and shivers

Japanese: 悪寒戦慄 - おかんせんりつ
Chills and shivers

…It is an unpleasant chill felt at the beginning of a fever. The face turns pale and is often accompanied by involuntary trembling of the skeletal muscles (this is called shivering chills). When exogenous pyrogens enter the body due to infection, they act on white blood cells and other organs to produce and release endogenous pyrogens, which specifically stimulate the hypothalamus in the brain, where the thermoregulatory center is located, via the bloodstream.

*Some of the terminology explanations that mention "chills and shivers" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…発熱の初めなどに感じる,ぞくぞくとした不快な寒けをいう。顔面蒼白となり,骨格筋の不随意的な震えを伴うことが多い(これを悪寒戦慄(せんりつ)という)。感染によって外因性発熱物質が体内に入ると,白血球などに作用して内因性発熱物質が産生・放出され,血行を介して体温調節中枢の存在する脳の視床下部を特異的に刺激する。…

※「悪寒戦慄」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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