Research to improve quality of life

Research what Americans believe defines quality of life, how they obtain it, and whether it determines longevity and end-of-life satisfaction.
A well-worded questionaire supplimenting the usual demographic information (such as age, education level, income source, ethnicity, culture, region, marrital status, status of health, sources of enjoyment, time spent doing those things, time spent obtaining resources to get those things, number of other people with whom one shares those interests, and what one would enjoy if one had the resources - time, money, health - but doesn't) - and why not, included perhaps in the next census, where participants would be tracked for longevity and improvements in quality of life and life satisfaction, the results published upon each publication of US census.