Frances E. Jensen, MD, is Professor and Chair of the Department of Neurology at the Perelman School of Medicine, University of Pennsylvania. Dr. Jensen has researched brain development from the neonatal period through adulthood. She was Professor of Neurology at Harvard Medical School, Director of Translational Neuroscience and Director of Epilepsy Research at Boston Children's Hospital, and Senior Neurologist at Boston Children's and Brigham and Women's Hospitals. She speaks about the teen brain and other brain-related trends and ideas in a wide range of settings, including museums; high schools; TEDMED talks and other conferences; leading print, TV and radio stations; and print publications.