Clinical and physiological metrics strongly associated with an individual’s long-term survival probability, independent of specific disease diagnoses. These predictors reflect the cumulative burden of systemic aging and dysregulation across various biological systems. Monitoring these factors offers a proactive approach to longevity, shifting the clinical focus from disease management to healthspan extension. Key hormonal and metabolic markers frequently feature in these prognostic models, providing tangible targets for intervention.
Origin
The concept originates from epidemiological and geriatric research, specifically longitudinal studies that track large populations over decades. The term gained prominence in preventative medicine and biogerontology as researchers sought quantifiable, modifiable risk factors beyond traditional cardiovascular or oncological markers. It synthesizes data from multiple biological domains—metabolic, inflammatory, and endocrine—to create a holistic risk profile.
Mechanism
These predictors operate by quantifying the degree of homeostatic failure or biological reserve depletion within the organism. For instance, dysregulated glucose metabolism, chronic low-grade inflammation, or unfavorable hormone profiles indicate a reduced capacity to respond to stress and repair damage. When multiple systems show suboptimal function, the integrated physiological resilience declines, which mechanistically increases vulnerability to fatal events from any cause.
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