Jan 15, 2009
It is real: http://www.cdc.gov/BRFSS/
And it is REQUIRED by the Centers for Disease Control and Prevention for every state in the country to conduct this study. The company conducting the survey is a legitimate social science research firm that has been in business for over 50 years --> http://www.srbi.com/Home.html
If you don't want to do the survey, pick up the phone and ask to be taken off the list - simple as that. There is no need to be rude, everyone has long, stressful days. There are real people on the other end of the phone that have those same stressful days and they don't need to be yelled at.
They don't want to sell you anything. They don't know your name or address. They're just doing their job, in an attempt to help improve health services in your area. What's so wrong with that?