SAT阅读素材：Human Happiness

下面格伦小编为大家整理一篇关于Human Happiness的SAT阅读素材文章，供大家学习，大家平时也可以多关注和积累，自己搜集整理一些比较好的SAT阅读考试素材，帮助自己更好地备考SAT阅读考试。

每一篇SAT阅读素材均有其主要观点或中心主题。典型的围绕文章主要观点的问题大多是：在这篇文章中作者的主要目的是什么?这篇文章主要涉及什么问题?这篇文章主要建议是什么?这篇文章总体上想要回答什么问题等。读完每一篇SAT阅读素材，我们都要针对SAT素材想想这几个问题。

Human relationships are consistently found to be the most important correlation with human happiness.

A widely publicized study from 2008 in the British Medical Journal reported that happiness in social networks may spread from person to person.[11] Researchers followed nearly 5000 individuals for 20 years in the long-standing Framingham Heart Study and found clusters of happiness and unhappiness that spread up to 3 degrees of separation on average. Happiness tended to spread through close relationships like friends, siblings, spouses, and next-door neighbors, and the researchers reported that happiness spread more consistently than unhappiness through the network. Moreover, the structure of the social network appeared to have an impact on happiness, as people who were very central (with many friends, and friends of friends) were significantly more likely to be happy than those on the periphery of the network. Overall, the results suggest that happiness might spread through a population like a virus.