嬰兒為什么不怕冷？

發(fā)布時間：[2025-02-21] 閱讀：[324]次作者：萊西暖心家政公司

暖心家政時刻準備等你約 0532-58739843

嬰兒其實是不怕冷的，因為TA們身上獨有一種神奇的物質(zhì)
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褐色脂肪！
　　褐色脂肪（Brown Fat），是動物體內(nèi)一種主要儲存中小型脂肪滴的脂肪細胞，可以產(chǎn)生身體的熱能。它燃燒耗能大概是肌肉組織燃燒耗能的5倍以上，而成年人身體里含有的褐色脂肪非常少，主要分布在脂肪比較薄的地方如脖子、鎖骨、肩膀部位。這些地方?jīng)]有脂肪保護，需要熱量比較快的產(chǎn)生，而新生兒體溫調(diào)節(jié)機制還不成熟，褐色脂肪的神奇就在于它在新生兒的體內(nèi)比例非常高，這樣就可以保證新生兒體內(nèi)的褐色脂肪產(chǎn)生足夠多的熱量。不至于讓他們受凍。

　　大自然的設(shè)計就是這么奇妙，他會為寶寶設(shè)計好天然的乳汁，也會為寶寶設(shè)計好褐色脂肪。當(dāng)寶寶離開媽媽溫暖的子宮，褐色脂肪就會產(chǎn)生熱能，幫助寶寶適應(yīng)這“寒冷”的新世界。而當(dāng)寶寶慢慢長大，身體調(diào)節(jié)體溫的能力逐漸完善，褐色脂肪也會慢慢減少，到成年時，褐色脂肪的比例已經(jīng)減少到不足體重的2%。感謝上帝的創(chuàng)造！

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報名：嬰兒為什么不怕冷？

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嬰兒為什么不怕冷？

報名：嬰兒為什么不怕冷？

嬰兒為什么不怕冷？

報名：嬰兒為什么不怕冷？