How do we become happy and where does happiness come from?
This week "20/20" is exploring the coveted emotion and introducing you to six theories about happiness, that feeling we all want to possess.
How happy do you consider yourself? Whether you think you're happy or you're convinced that you aren't, this quiz may yield some surprising answers.
Sonja Lyubomirsky, a professor at the University of California Riverside, developed this questionnaire several years ago. She has spent most...Full Story