Many factors may converge in healthy ageing in the oldest old, but their association and predictive power on healthy o functionally impaired ageing has yet to be demonstrated. By detecting healthy ageing and in turn, poor ageing, we could take action to prevent chronic diseases associated with age. We conducted a pilot study comparing results of a set of markers (peripheral blood mononuclear cell telomere length or PBMC, circulating Aβ peptides, anti-Aβ antibodies, and ApoE status) previously as...