The Frailty Puzzle: Searching for Immortality or for Knowledge Survival?

Abstract

What is the value of assessing the biological age and frailty and predicting residual lifespan and health status? The benefit is obvious if we have means to alter the pace of aging and the development of frailty. So far, limited but increasing examples of interventions altering the predicted status indicate that, at least in some cases, this is possible through interventions spanning from the economic-social through drug treatments. Thus, why searching for biological markers, when some clinical and socio-economic indicators do already provide sufficiently accurate predictions? Indeed, the search of frailty biomarkers and of their biological clocks helps to build up a mechanistic frame that may orientate the design of interventions and the time window of their efficacy. Among the candidate biomarkers identified, several studies converge to indicate epigenetic clocks as a promising sensitive biomarker of the aging process. Moreover, it will help to establish the relationship between personal aging and health trajectories and to individuate the check points beyond which biological changes are irreversible.

The other side of the coin: Dispositional optimism, frailty, and negative life events in aging

“…5 Clinical practice and research are increasingly focused on counteracting frailty and promoting factors of resilience. 6 Dispositional optimism may denote the psychological common denominator between these two opposite pathways: optimistic subjects are more likely to reach longevity and, in addition, can exhibit lower levels of frailty. The longitudinal contribution of dispositional optimism to frailty trajectories needs to be further investigated.…”