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《Science》越挠越“痒”为什么还想挠?它对皮肤的真正影响
抓挠痒的皮疹会触发痛觉神经元,激活肥大细胞,从而使炎症恶化。 抓挠痒的皮疹会触发痛觉神经元,激活肥大细胞,从而造成破坏性的反馈循环,从而加剧炎症。 虽然抓挠有助于去除细菌,但它最终对皮肤的伤害大于它的好处。科学家们现在正在探索新的 ...
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