The Complex Interplay Between Gut–Brain, Gut–Liver, and Liver–Brain Axes provides current and wide-ranging information in the field of gastrointestinal, liver, and brain interactions that can be used in resolving important clinical issues. This book is systematically split into three distinct sections. The first section introduces the pathophysiology of the gut–brain connection, including the causative effect of the interactions between the gut and brain in gastrointestinal and psychiatricneurological disorders, and the role of serotonin and its pathways in gastrointestinal disorders.