The 2009 list for happiest states shows the Midwest and West scored high on well-being while some other areas did not.
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The disparities between what younger people expect will happen as they age, and what really happens, are stark.
Wealth, fame and good looks may be a formula for anxiety rather than happiness, a new study suggests.
Scientists have found that the success rate for marriage is connected to how much people smiled in old photographs.
Gratitude when receiving a gift is, apparently, a typical response for a woman. For men, they feel obligation.
Key groups of people in the United States have grown happier over the past few decades, while other have become less so.