Some intrepid researchers at Harvard and Northeastern culled hundreds of millions of tweets over the past three years and analyzed the language to put together a handy YouTube visualization of people's moods across the country. Essentially, everyone's happiest when they wake up or are about to fall asleep and they're otherwise least cheerful midday, and midweek.
West Coast tweeters display the same mood cycle as their East Coast counterparts, but the whole curve is more upbeat. Also, if you focus on where Michigan is on the visualization, you'll notice it never once reaches happiness. Blue Phoenix Network points readers to the full article on Mashable. (Read more Twitter stories.)