...does travel really serve up all the joy we crave? And are people who travel really happier than those who don't?

According to one study published by the International Society for Quality-of-life Studies, the answers to those two questions are "yes" and "yes." The study results suggest that a relaxing vacation not only has the power to serve up delight while it's underway, but, thanks to eager anticipation, it can also boost vacationers' happiness levels weeks and even months prior to its fruition

http://adventure.howstuffworks.com/traveling-make-you-happy.htm#mkcpgn=kaw1