Epigenetic Aging Biomarkers Could Advance Healthy Longevity

EPIGENETIC aging biomarkers were associated with lower intrinsic capacity across adulthood, suggesting they could help identify individuals at increased risk of functional decline and support more personalised approaches to healthy aging. 

As healthcare increasingly shifts towards preventive medicine, identifying biological markers of functional decline has become a major research priority. The World Health Organization defines intrinsic capacity as the combination of physical and mental abilities that an individual can draw upon throughout life. However, the biological mechanisms underlying age related declines in intrinsic capacity remain poorly understood. Researchers have now investigated whether molecular measures of biological aging could help predict changes in functional health before significant disability develops. 

Aging Clocks Revealed Early Signs of Functional Decline 

The population-based cohort study analysed 970 adults aged 20 years and older enrolled in the INSPIRE Lifespan Translational Cohort, with participants followed for approximately 3 years. Investigators assessed accelerated biological aging using five established epigenetic clocks alongside an inflammatory aging clock and examined their relationship with global intrinsic capacity, which incorporated cognition, mobility, psychological health, vitality, and sensory function. 

Accelerated epigenetic aging was consistently associated with lower intrinsic capacity, with the detrimental association becoming stronger as chronological age increased. By comparison, accelerated inflammatory aging showed weaker associations with declining function. Participants exhibiting both accelerated epigenetic and inflammatory aging experienced the greatest functional impairment, suggesting that multiple biological aging pathways may contribute to declining health. 

The association between accelerated epigenetic aging and lower intrinsic capacity was observed predominantly among male participants. Among the individual domains assessed, mobility appeared to be the most vulnerable to accelerated biological aging. 

Biomarkers Could Support Precision Medicine 

The findings highlight the growing potential of epigenetic aging biomarkers as tools for precision medicine and healthy longevity. Rather than focusing solely on diagnosing disease after symptoms emerge, biological aging clocks may enable clinicians to identify individuals at greater risk of functional decline earlier in the aging process. 

The authors suggest that biomarkers derived from epigenetic aging, and to a lesser extent inflammatory aging, could help guide targeted interventions aimed at preserving intrinsic capacity before irreversible deterioration occurs. Such an approach aligns with the broader shift towards function centred care and personalised prevention. 

Although further validation will be required before these biomarkers can be routinely integrated into clinical practice, the study demonstrates how advances in molecular aging technologies may help reshape healthy aging strategies. By combining biological age measurements with functional assessment, clinicians may eventually be able to deliver more personalised interventions designed to extend health span rather than simply treat age related disease. 

Reference 

Rouch L et al.; IHU HealthAge INSPIRE/Open Science group. Accelerated epigenetic and inflammatory aging and intrinsic capacity. JAMA Netw Open. 2026;9(7):e2624102. 

Featured Image: Konstantin Yuganov on Adobe Stock