Cities@Heart was represented at the HL7-organised event, Hospitals on FHIR User Days in Pisa, Italy, on October 10, 2026. Improving cardiovascular health requires connections between the care people receive and the conditions in which they live. For Cities@Heart, this means bringing together hospitals, public health, municipal services and communities—and enabling their information systems to work together. This challenge was explored during the Hospitals on FHIR User Days in