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What Is Happiness and Why Is It Important?

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in his 2002 best-selling book, Authentic Happiness. And according to a 2008-2009 survey of 450,000 Americans led by Kahneman, personal well-being did increase as income increased—but only to a point. Feeling flow on a regular basis bolsters your self-esteem, confidence, and yes, happiness. . Working It Out. Feeling tired?

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