Online course provider Coursera has compiled the most popular free-to-access classes focused on mental health. But you don't have to audit a class at your local college or hunker down in the library to keep learning new things. Some extremely helpful online courses are available free of charge. The Science of Well-Being (Yale University)Over the course of 10 weeks, Yale's most popular class covers misconceptions about happiness and explores what you can do to experience more of it. 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: Coursera, Laurie Santos, enrollees, Tsang Organizations: Yale University, University of Michigan, Arts and Science, University of Toronto, The University of, McMaster University, Universiteit, Universiteit Leiden, CNBC Locations: Universiteit Leiden