这种有中枢神经系统参与的情况，称为中枢敏感化。

When the CNS is involved, the condition is termed central sensitization.

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来自动物实验的证据表明内异症可以导致中枢敏感化。

Evidence from animal studies shows that endometriosis can result in central sensitization.

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也就是说，这些老鼠的愉悦中枢变得不那么敏感了，垃圾食品也不能让它们感觉好了，除非它们吃的更多。

In other words, their pleasure centers were becoming less sensitive and the junk food didn't make them feel good unless they ate more and more.

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