双语:科学研究揭示我们为什么要接吻

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  People kiss for the simple reason that it feels good. Our lips are full of sensitive nerve endings, which activate sensory areas in the brain. Kissing boosts the levels of neurotransmitter substances such as dopamine, serotonin, and oxytocin. Dopamine triggers craving and desire, serotonin elevate......
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  • 冰城飞狐 提出于 2018-01-13 04:00