Here's an unscientific observation. My wife lived in Madison, Wisconsin for a period of time, but was not necessarily that happy. That lone fact has not stopped the city from just being named one of the happiest cities in the entire world.
I'm not trying to be a cynic, but I must admit that I was somewhat surprised by this. Illinois has just been named one of the happiest states in America. It's apparently all sunshine and roses in the Land of Lincoln - allegedly.
Do you need another reason to eat bacon? Besides the fact that it's the single best tasting food on the planet. No? Well neither do I, but here's a great one anyway.