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Feeling a little blue? Here are ten fast and easy ways to smile.
感覺有些郁悶嗎？以下十種方法快速且簡單，讓你馬上露出微笑。
1. Exercise
When you exercise, your brain releases a chemical called endorphins. This chemical makes you feel happier. That is just another reason why exercise is good for you.
運動
當你做運動時，大腦會產生一種叫做"內啡肽"的化學物質。這種物質讓讓你感到開心。這是另一個運動對你有好處的原因。
