Why does prolonged exposure to cold temperatures initially induce shivering, but later cause it to cease even if the cold stress persists?

💡 Explanation

As core body temperature drops during prolonged cold exposure, hypothermia impairs the hypothalamus's ability to regulate thermogenesis, including shivering, because enzymatic processes slow and neural function is compromised. Therefore shivering stops, rather than continuing indefinitely, despite the ongoing cold stress, because the regulatory center is no longer functional.

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