laughter中等

They are noting that the Victorians suddenly seem to become more human as the hundred-or-so years that separate us fade away through our common experience of laughter.

他们注意到，随着我们之间相隔的大约一百年因共同的欢笑体验而渐渐消弭，维多利亚时代的人似乎突然变得更有人情味了。

We tend to think that friends and family members are our biggest sources of connection, laughter, and warmth.

我们往往认为，朋友和家人是我们获得联系、欢笑和温暖的最大来源。

Ancient Greek philosopher Aristotle viewed laughter as “a bodily exercise precious to health.”

古希腊哲学家亚里士多德把笑视为“一种对健康大有裨益的身体运动”。

Laughter does [produce] short-term changes in the function of the heart and its blood vessels, [boosting] heart rate and oxygen consumption.

笑确实会使心脏及血管的功能产生短期变化，使心率加快、耗氧量增加。

But because hard laughter is difficult to [sustain], a good laugh is unlikely to have [measurable] benefits the way, say, walking or jogging does.

但由于开怀大笑难以持续，痛快地笑一场不太可能像散步或慢跑那样带来可以衡量的益处。

[In fact], instead of straining muscles to build them, as exercise does, laughter apparently accomplishes the [opposite].

事实上，笑并不像运动那样通过拉紧肌肉来锻炼肌肉，它所起的作用显然恰恰相反。