SUBSCRIBERDunedinStairway to cognitive healthUniversity of Otago Brain Health Research Centre psychologist Prof Liana Machado takes a seat while participants in her cognition study run up and down stairs. Photo: Guy FrederickJohn LewisThursday, August 20, 2026SHAREfacebooktwitterwhatsappemaillinkedinfacebooktwitterwhatsappemaillinkedinPHOTO