The name Gerda originates from the Old Norse mythology and means “protection” or “the one who belongs to the farm”. In this case, nevertheless, GERDA stands for Gerontological Regional Database, i.e. the cross-border database on health and living conditions among older adults collected in Ostrobothnia and Southern Ostrobothnia in Finland, and Västerbotten in Sweden. In 2021, data will additionally be collected on the Åland Islands. GERDA is an interdisciplinary research collaboration meaning that health-related, medical as well as social aspects of aging are examined.