Background: Birthweight is a widely accepted indicator of infant health and has signifcant and lasting associations. Several studies have found that low and high birthweight have signifcant negative associations with adult health. A new study in the feld of social sciences has established that...

Using a monthly survey, this paper finds that supporters of the governing cabinet are significantly happier than non-supporters throughout our sample period. We investigate the reason and examine two hypotheses: 1) happy persons support the ruling Liberal Democratic Party, and 2) supporters of...

This paper investigates how people's happiness depends on their current activities and on time. We conducted an hourly web survey, in which 70 students reported their happiness every hour on one day every month from December 2006 to February 2008. This method is an extension of the experience...