Can Medicine Predict How You Will Age Before Disease Develops?

1. Geroscience Shifts the Focus from Individual Diseases to the Biology of Aging Traditional medicine has largely focused on diagnosing and treating individual diseases after they develop. Geroscience introduces a fundamentally different perspective by recognizing aging itself as the strongest shared risk factor for most chronic diseases. Rather than viewing cardiovascular disease, cancer, diabetes, osteoporosis, and neurodegenerative disorders as completely separate conditions, geroscience investigates the biological processes that contribute to all of them. The ultimate goal is not simply to extend lifespan but to preserve healthspan by slowing the mechanisms that drive biological aging. This shift moves medicine from treating the consequences of aging toward targeting its underlying biological causes.

2. The Hallmarks of Aging Have Evolved into a More Comprehensive Framework The original Hallmarks of Aging, published in 2013, identified nine fundamental biological processes involved in aging. As scientific knowledge has expanded, this framework has continued to evolve. In 2023, the framework was expanded to include twelve hallmarks with the addition of disabled macroautophagy, chronic inflammation, and dysbiosis. In this 2025 review, the authors propose two additional hallmarks—extracellular matrix changes and psychosocial isolation—reflecting the growing recognition that aging affects not only cells and molecules but also tissues, organ systems, and social well-being. This evolution demonstrates that aging is an emergent property of interacting biological systems. It is far more complex than originally understood and requires a systems-based approach to both research and clinical care. The Hallmarks of Aging provide a valuable conceptual framework, but they cannot fully capture the complexity of biological aging.

3. Aging Results from Interconnected Biological Processes The Hallmarks of Aging do not function independently. Instead, they form a highly interconnected network in which changes in one biological process influence many others. For example, impaired autophagy contributes to mitochondrial dysfunction, chronic inflammation, and genomic instability. Senescent cells promote inflammation, while chronic inflammation accelerates dysfunction across multiple biological systems. Understanding these interactions is essential because targeting a single hallmark is unlikely to produce meaningful improvements in healthspan. Effective longevity interventions will likely need to influence multiple biological pathways simultaneously.

4. Biological Aging Is Highly Individualized Chronological age alone cannot accurately describe how a person is aging. Different organs and biological systems can age at different rates within the same individual. This variability helps explain the wide differences in health, resilience, and disease risk observed among people of the same chronological age. For example, cardiovascular, metabolic, neurological, or immune aging may progress independently, creating distinct aging patterns known as ageotypes. This helps explain why two healthy adults of the same chronological age may have very different biological strengths, vulnerabilities, and future health risks.

5. Gerogenes and Gerosuppressor Genes Influence Biological Aging Unlike single-gene disorders, biological aging results from interactions among numerous genes, molecular pathways, and environmental influences. The concepts of gerogenes and gerosuppressor genes are analogous to oncogenes and tumor suppressor genes in cancer biology. Gerogenes are genes or molecular pathways that may accelerate biological aging, whereas gerosuppressor genes help protect tissues against age-related decline. However, these genes do not act in isolation. Their effects depend on interactions with environmental exposures, lifestyle, psychological health, and other biological pathways. Together, they help explain why people of the same chronological age often age at different rates.

6. Multi-Omics Technologies Are Transforming Aging Assessment Modern technologies now allow scientists to study aging at multiple biological levels simultaneously. These include genomics, epigenomics, transcriptomics, proteomics, metabolomics, lipidomics, and microbiome analysis. Together, these approaches—known as multi-omics—provide a far more comprehensive picture of biological aging by allowing multiple biological systems to be assessed simultaneously. Rather than relying on a single biomarker, future assessments are expected to integrate information from multiple biological systems to create a more accurate and personalized evaluation of health.

7. Artificial Intelligence Enables Data Integration The enormous amount of information generated by multi-omics technologies exceeds what clinicians can realistically interpret without computational support. Artificial intelligence (AI) has the potential to integrate biological, clinical, imaging, wearable-device, and lifestyle data into personalized models of aging. These technologies may improve risk prediction and help guide individualized preventive strategies. However, the authors emphasize that AI-based tools require rigorous scientific validation and regulatory approval before they can become part of routine clinical practice.

8. Precision Geromedicine Combines Biology with Personalized Prevention

Precision geromedicine represents the clinical translation of geroscience into personalized healthcare. It combines advances in aging biology with the principles of precision medicine to deliver more proactive and individualized care.

Rather than applying identical preventive strategies to everyone, it integrates biological aging biomarkers, genetics, clinical findings, lifestyle, environmental exposures, and psychosocial health.

The goal is to identify unfavorable aging trajectories before disease develops, allowing earlier and more individualized interventions to preserve intrinsic capacity, delay age-related diseases, and extend healthspan.

The review also highlights the emerging role of gerotherapeutics—interventions designed to target the biological mechanisms of aging rather than individual diseases. These include both pharmacological and non-pharmacological approaches that may one day help delay multiple age-related conditions simultaneously. However, most gerotherapeutic strategies remain under investigation and require robust clinical evidence before they can be recommended for routine practice.

9. Precision Geromedicine Requires Rigorous Clinical Validation The authors clearly distinguish precision geromedicine from many commercial "anti-aging" approaches currently available. Although biological aging biomarkers, artificial intelligence, multi-omics technologies, and emerging gerotherapeutics show enormous promise, most still require validation in well-designed randomized clinical trials before they can become part of routine medical practice. The future of longevity medicine will depend not only on scientific discovery but also on rigorous clinical validation. Precision geromedicine has enormous potential, but its ultimate success will depend on demonstrating measurable improvements in healthy aging, functional capacity, and clinical outcomes in real-world patients.

This review highlights one of the most important shifts in modern medicine: healthy aging is increasingly viewed as a measurable and potentially modifiable biological process rather than an inevitable consequence of growing older.

Instead of waiting for chronic diseases to appear, physicians may increasingly identify individuals at higher biological risk years before symptoms develop. By combining biomarkers of aging with genetics, clinical evaluation, lifestyle assessment, and environmental information, future healthcare may become more proactive, personalized, and preventive.

The review also emphasizes that aging is highly individualized. Two people of the same chronological age may have very different biological ages, organ-specific vulnerabilities, and responses to interventions. This reinforces the importance of personalized rather than one-size-fits-all prevention.

Although many biomarkers and emerging technologies remain under investigation, they have the potential to improve risk prediction, identify early biological changes, and support interventions that preserve healthspan—the number of years lived in good health, independence, and functional capacity.

Ultimately, precision geromedicine represents a shift from treating age-related diseases to maintaining biological resilience throughout life.

Many concepts described in this review are already beginning to influence clinical practice, while others remain primarily within the field of research.

Today, physicians can already evaluate many established risk factors for biological aging through comprehensive medical assessment, imaging, laboratory testing, body composition analysis, cardiovascular evaluation, sleep assessment, nutritional status, physical performance, and lifestyle analysis.

At the same time, emerging technologies—including biological aging clocks, multi-omics profiling, advanced imaging, and artificial intelligence—are rapidly expanding our ability to characterize biological aging more precisely. However, many of these approaches still require further validation before they can be routinely recommended in clinical practice.

For patients, the most important message is that healthy aging depends on a combination of evidence-based lifestyle interventions, preventive medical care, and early identification of individual risk factors. Precision geromedicine should complement—not replace—established principles of preventive medicine.