可可电台，每期节目一话题，让英语磨练耳朵的同时学到更多有益的小知识，丰富知识的同时受益于生活。

细节改变生活

Bliss

狂喜

Researchers asked volunteers to rate their level of happiness the last time they spent money on themselves or on someone else.

研究者要求志愿者回想一下上次为自己或别人花钱时到底有多开心。

Not only were the givers happier, but when presented with extra cash to use as they wished, they were more apt to spend it on others.

事实上，花钱者不仅更开心了，给他们多余的钱时，他们还会乐于花在别人身上。

The study's authors concluded "a positive feedback loop" exists between offering gifts and well-being。

研究作者总结道，给礼物和人之间有着“积极的回馈循环”。

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