But research shows that money can't buy happiness; happy people just seem to be more successful. "Happy people make more money, have better relationships [and] are more successful in life, not vice versa," Muller says. Unless you're using money to buy experiences, get extra time or donate to others, it can't buy you happiness, social scientist and happiness expert, Arthur C. Brooks, teaches in his Harvard course about managing happiness. But being happier in life can lead to financial increases and success, Muller says. Plus, sign up for CNBC Make It's newsletter to get tips and tricks for success at work, with money and in life.

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Persons: Tami Muller, Muller, Arthur C, Brooks Organizations: Harvard, CNBC