HEALTHY LIVING
03/21/2009 05:12 am ET | Updated Nov 17, 2011

5 Key Things Happy People Do

Sages going back to Socrates have offered advice on how to be happy, but only now are scientists beginning to address this question with systematic, controlled research. Although many of the new studies reaffirm time-honored wisdom ("Do what you love," "To thine own self be true"), they also add a number of fresh twists and insights. We canvassed the leading experts on what happy people have in common--and why it's worth trying to become one of them.

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