In December, the publication Social Indicators Research reported on a study of activities that help lead to happy lives.

VOA: special.2009.03.10

They thought everyone who'd be taking this class would be taking it because they are already really happy and they want to study about how amazing they are.

他们认为每个上这门课的人会上这门课,是因为他们已经很幸福了,他们想研究自己到底有多棒。

哈佛公开课 - 幸福课课程节选

The study found that happy people are more likely to be socially active, read,vote and attend religious services.

VOA: special.2009.03.10

The new study shows that happiness spreads through social networks like an emotional virus - a virus people would be happy to catch.

VOA: special.2009.01.21

In December,the journal Social Indicators Research published a study of activities that help lead to happy lives.

VOA: special.2009.02.11