There are many benefits to being happy. Happier people tend to be healthier, live longer and earn more. They also tend to volunteer more, be better at relationships and smile more of what psychologists call “Duchenne” or genuine smiles. Less well understood is why happiness is contagious.
幸福有許多好處。更幸福的人往往更健康、更長壽、掙得更多。他們通常也會從事更多的志愿工作、更善于處理人際關系、發出更多心理學家所說的“杜興微笑”(Duchenne smile)，即真誠的微笑。讓人不太理解的是，為什么幸?？梢詡魅尽?/p>
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