She is also an associate editor for American Family Physician, the best-read journal in the field of primary care. Dr. Sexton received her medical degree from the University of Miami School of Medicine in 1996 and completed a residency in family medicine at Georgetown University School of Medicine in 1999. Her writing and research in the field of pacifier and thumb sucking was not only fueled by her current medical practice, but also by her two young daughters, who were avid pacifier users.