Mortality Risk Aging

Mortality risk aging describes the age-dependent increase in probability of death due to declining biological resilience. With aging, homeostatic systems become less capable of compensating for physiological stress, infection, injury, or disease. Mortality risk aging is influenced by cumulative cellular damage, reduced organ reserve, immune dysfunction, and impaired metabolic regulation. Small perturbations that are well tolerated in younger individuals can become life-threatening in older adults. Mortality risk aging is also shaped by lifestyle, environment, and socioeconomic factors interacting with biological aging. Quantifying mortality risk aging helps distinguish biological age from chronological age and improves prediction of health outcomes. Understanding mortality risk aging provides a framework for preventive strategies that strengthen physiological resilience, reduce vulnerability, and delay transition from chronic decline to fatal events.