لماذا نرتعش من البرد ؟

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ترتعش وترتجف عندما تشعر بالبرد الشديد وذلك لأن جزء من المخ يسمى “Hypothalamus - هايبوثلامس” أو “الوطاء” يراقب درجة حرارة جسمكوعندما تنخفض عن حد معين تبدأ عضلات جسمك في تصرف دفاعي وهو الإرتعاش والذي بدوره يرفع درجة حرارة جسمك.

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