Since laughter is associated with activity in the brain's dopamine reward circuitry, it encourages babies to explore the world by making them feel happy and safe.

既然与大脑多巴胺反馈回路相关联，笑鼓励宝贝们去探索世界使自己感觉高兴和安全。

youdao

I am a sincere, love life, love laughter girl, work hard, like to explore, hope to get approval, I will try my best.

我是个真诚，热爱生活，爱笑的女孩，工作认真，喜欢探索，希望得到认可，我会努力做到最好。

youdao