Wow. According to this article, referenced in New York magazine, a bunch of researchers from Northeastern and Harvard have devised a way to quantify and visualize happiness in the U.S. — based on Twitter.
Analyzing more than 300 million posts to Twitter using the "ANEW word list," they have determined, among many things, that we Americans are happiest on Sunday morning and saddest on Thursday night. Hence Thirsty Thursday? Also interesting: "A number of interesting trends can be observed in the data..." the website says, "with the west coast showing happier tweets..."
I've always wanted to move to California. Now I can justify it, based on Dr. Twitter's empirical health observations.