While the liver is mostly known as the core of metabolism, contributing to the storage of nutrients and excretion of toxic substances, there is an increasing interest in how it interacts with the central nervous system through the liver-brain axis. At the 2023 European Association for the Study of the Liver (EASL) meeting in Vienna, Austria, group leader Kristina Schoonjans and her colleague Hadrien Demagny from the Laboratory of Metabolic Signaling at École Polytechnique Fédérale de Lausanne, Switzerland, gave talks setting out the context of inter-organ communication in liver disease, adding new findings from their research in the liver-brain axis.