So when Yale released its happiness class for free online, I decided to give it a try. The 10-week class, called "The Science of Well-Being," is taught by Laurie Santos, a professor of psychology and cognitive science. She starts the class by addressing why the things we want in life don't actually make us happy. Money ≠ happiness. Be more mindful about how you spend moneyLater in the class, Santos interviews Elizabeth Dunn, a happiness researcher and the co-author of "Happy Money."

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