[http://www.pnas.org/content/107/42/17922.full In a 2010 study], Headey and his team used data from the German Socio-Economic Panel study, which covered some 30,000 people living in 11,000 households from 1984 to 2009. In one part of their analysis, Headey and his colleagues looked at how the personality traits of married people affect life satisfaction. | [http://www.pnas.org/content/107/42/17922.full In a 2010 study], Headey and his team used data from the German Socio-Economic Panel study, which covered some 30,000 people living in 11,000 households from 1984 to 2009. In one part of their analysis, Headey and his colleagues looked at how the personality traits of married people affect life satisfaction. |