Everyone just wants to be happy, but psychologists at the University of Wisconsin found that people who search out happiness for its own sake tend to live shorter lives and are at greater risk to develop depression and other mental illnesses. Yes, the pursuit of happiness can lead to unhappiness.
Psychologists say that people should chase after "eudaimonic" happiness, the good feelings that come from volunteering, raising children, or having a purpose in life other than making money, being fabulous, and watching reality television programs. This is the sort emotional activity that will lead to a longer life and general sense of well-being. And it doesn't work if people are forced into it either, so your court-appointed community service doesn't count. You better get yourself to a soup kitchen, or you're as good as dead.