Leading happiness expert Arthur C ... Aristotle identified 10 such virtues, and Brooks says research supports each one. Want to earn some extra money on the side? Take CNBC's new online course ...
One large study found just a slight overall dip in happiness between age 20 and age 70—on a scale of 1 to 10, average life satisfaction went from 5.8 to 5.4. What is the happiness curve?
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