Twitter’s vast quantities of real-time, fine-grained data make it an ideal resource for sociological research.

Scientists and statisticians can study Twitter for insights on people’s spending habits, what they watch on TV, their political views, and even their happiness.

Which is exactly what a group of researchers did, conducting an analysis of 10 million geotagged tweets to determine the happiest and most depressed states and cities in America. And the findings are fascinating.

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