Bailey Hanna, MS, RDN is a registered dietitian specializing in digestive health, with a strong focus on Irritable Bowel Syndrome (IBS). She earned her Master of Science in Nutrition and Dietetics from Loma Linda University and has over seven years of experience in clinical practice, research, and advisory roles. As the founder of IBSProbiotics.org, Bailey is dedicated to cutting through the confusion surrounding probiotics and IBS. She simplifies the latest research into clear, actionable insights—empowering individuals with IBS and their clinicians to have informed conversations about alternative therapies.

Dr. Vladimir Hedrih, PhD, is a full professor of psychology at the University of Niš in Serbia, with nearly two decades of experience in research and teaching. His expertise spans research methodology, statistics, organizational psychology, and the study of social trauma. In addition to his academic work, he serves as the editor-in-chief of the scientific journal Psihologija.