Brian E. Lacy, MD is currently Senior Associate Consultant at Mayo Clinic Jacksonville. He previously worked at the Dartmouth-Hitchcock Medical Center where he was Section Chief of Gastroenterology and Hepatology and Professor of Medicine at the Geisel School of Medicine at Dartmouth. Dr. Lacy’s clinical and basic science research interests focus on disorders of gastrointestinal motility, with an emphasis on irritable bowel syndrome, achalasia, dyspepsia, gastroparesis, acid reflux disease, constipation, intestinal pseudo-obstruction and visceral pain. He is the author of over 150 peer-reviewed articles on gastrointestinal motility disorders and functional bowel disorders, in addition to multiple text book chapters. Dr. Lacy is the co-author of a book for the general public on acid reflux disease, "Healing Heartburn", is the author of "Making Sense of IBS", a book for the general public on irritable bowel syndrome, and edited and authored the books "Curbside Consultations in IBS" and “Functional and Motility Disorders of the Gastrointestinal Tract” for health care providers. He is the co-editor of an upcoming book for internists on common upper gastrointestinal disorders. Dr. Lacy is the current co-Editor in Chief of the American Journal of Gastroenterology. Dr. Lacy was the co-Chairman for the Rome IV Committee on Functional Bowel Disorders.