The core temperature of most animals varies with ambient temperature, a phenomenon called poikilothermia. However, humans, like other mammals and birds, are homeothermic, meaning that they are able to keep their central temperature at 37°C with only small fluctuations of about 0·5°C.¹ The hypothalamus regulates body temperature by controlling three main physiological responses: skin vasomotor tone, skeletal muscle tone and shivering, and sweating. Central temperature can be shifted outside the normal range by two mechanisms.

中文翻译：

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败血症的体温：一个热门话题

大多数动物的体温会随环境温度而变化，这种现象被称为“体温过高症”。但是，人类像其他哺乳动物和鸟类一样，都是等温的，这意味着他们能够将中心温度保持在37°C，只有大约0·5°C的小幅波动。¹下丘脑通过控制三种主要的生理反应来调节体温：皮肤血管舒缩张力，骨骼肌张力和发抖以及出汗。中央温度可以通过两种机制移出正常范围。