但是，爱人的照片是在大脑内完全不同的区域里发生作用的——大脑原始的回报机制区域会发光，而那里正是上瘾药物发作时大脑会发光的区域，这也是为何类鸦片止痛药会发挥奇效。

But, the love photo acted in a totally different area of the brain-the primitive reward system region that lights up where addictive drugs work, and where pain-relieving opioids do their magic.

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