First, it tells your brain to be more happy. Try being depressed with a huge grin stuck on your face.

一是告诉你的大脑快乐一些。你试试咧着嘴笑还能郁闷吗。

youdao

First, it tells your brain to be more happy. Try being depressed with a huge grin stuck on your face.

一是告诉你的大脑快乐一些。你试试咧着嘴笑还能郁闷吗。

youdao