Lin Chang is an Associate Professor of Medicine in the Division of Digestive Diseases and Department of Medicine at the David Geffen School of Medicine at UCLA. She is the Co-Director and Head of the Clinical Program at the Center for Neurovisceral Sciences & Women's Health and Director of the Women's Digestive Health Center at UCLA. Dr. Chang's main area of research is the pathophysiology of irritable bowel syndrome (IBS) with particular interests in the overlap of IBS with fibromyalgia, as well as gender differences and neuroendocrine alterations. She is principal investigator on two NIH grants studying the central and peripheral mechanisms underlying IBS. She has also been an investigator on a number of clinical trials for functional bowel disorders. She is a member of the American College of Gastroenterology, the American Gastroenterological Association, and the Society for Neuroscience. Dr. Chang is the Co-chair of the Rome III subcommittee on Gender, Age and Cultural Influences on Functional Bowel Disorders. She is currently serving on the FDA GI Advisory Committee. Dr. Chang has multiple publications in peer-reviewed journals and textbooks. She has given over 100 lectures at national and local meetings.