Hypothermia is a more severe response to cold exposure that is defined as a significant drop in body core temperature.

低体温是由寒冷暴露引起的更加严重的反应。它的定义是身体核心温度的骤然下降。

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This will lower your body core temperature, decrease the heart rate's response to exercise, and reduce the chances of dehydration.

这样做会降低你的体温和运动时的心率，并减少脱水的几率。

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"We aren't sure why activity primes your body for sleep so well, but it's likely a combination of factors, including lowering your core body temperature, increasing the sleep-promoting hormone melatonin and supporting a biological need to restore energy levels and repair cells and tissues when you sleep, " Cardinal says.

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Statistics show only a 10-33% survival rate for adults whose core body temperature drops below 28degC.

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When the body's core temperature drops below 95 degrees Fahrenheit, a mild form of hypothermia takes hold.

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