Barbara Fredrickson is Kenan Distinguished Professor of Psychology and principal investigator of the Positive Emotions and Psychophysiology Laboratory (a.k.a. PEP Lab) at the University of North Carolina at Chapel Hill. Her research reveals how positive emotions, fleeting as they are, can tip the scales toward a life of flourishing.

Winner of several awards for her research and teaching - including the American Psychological Association's inaugural Templeton Prize in Positive Psychology and the Society of Experimental Social Psychology's Career Trajectory Award - Barb created her broaden-and-build theory to describe how positive emotions evolved for our human ancestors and how, today, they vitally shape people's health and well-being.

Barb's scientific contributions have influenced scholars and practitioners worldwide, in disciplines ranging from education to business and beyond. Her research has been featured in the New York Times Sunday Magazine, CNN, PBS, U.S. News & World Report, USA Today, Oprah Magazine, and elsewhere.

Barb lives with her husband and two sons in Carrboro, North Carolina, where she continually seeks out new ways to raise her positivity ratio.

Learn more about her work through her 2009 book, Positivity, by visiting her PEP Lab website , or reading her Positivity Blog at Psychology Today.