Barbara L. Fredrickson is a Kenan Distinguished Professor in the Department of Psychology and Neuroscience at the University of North Carolina at Chapel Hill, where she directs the PEP Lab. She received her Ph.D. in Psychology from Stanford University in 1990 and today is both an award-winning teacher and among the most highly cited scientists worldwide. In 2023, she was recognized as a Fellow of the American Association for the Advancement of Science, and she is the author of Positivity and Love 2.0.