# 當白血球遭遇入侵者,它們會釋放稱為細胞激素的攻擊性化學分子,而這會使你感到發熱與不舒服,因為你的身體正在與病原體交戰。使你感到不適的原因,並非來自病原體的感染,而是你的身體所進行的防禦過程。——《身體》
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