Foundations of Longevity
The Hallmarks of Aging: A Plain-Language Guide

Why the hallmarks matter
The hallmarks of aging are biological processes scientists use to understand why bodies change over time. They include genomic instability, epigenetic alterations, mitochondrial dysfunction, nutrient-sensing changes, cellular senescence, chronic inflammation, dysbiosis, and more.
A map, not a checklist
The hallmarks are not a simple checklist for patients to fix one by one. They are a framework for thinking about interconnected systems.
Where lifestyle fits
Exercise, nutrition, sleep, stress regulation, metabolic health, and avoidance of harmful exposures may influence several aging pathways at once.
Clinical use
A longevity visit translates this biology into practical questions: What can we measure, what can we safely change, and what matters most for your goals?
Practical takeaways
- Longevity medicine should be personalized, measured, and realistic.
- The strongest foundations are usually sleep, movement, metabolic health, nutrition, stress physiology, and reducing avoidable risk.
- Biomarkers and devices are most useful when they answer a clear question and lead to a safe action.
- Supplements, hormones, and advanced testing should be individualized and clinically supervised.
How SANAVITA Health approaches this
SANAVITA Health approaches longevity through a physician-led, whole-person lens. We focus on education, biomarkers, metabolic resilience, hormonal context, mitochondrial and cellular health, cognitive protection, and sustainable habits that fit the patient’s life.
Research references
- López-Otín C, et al. Hallmarks of aging: An expanding universe. Cell. 2023 https://pubmed.ncbi.nlm.nih.gov/36599349/
- Sun N, Youle RJ, Finkel T. The Mitochondrial Basis of Aging. Molecular Cell. 2016 https://pmc.ncbi.nlm.nih.gov/articles/PMC4762029/
- Covarrubias AJ, Perrone R, Grozio A, Verdin E. NAD+ metabolism and its roles in cellular processes during ageing. Nature Reviews Molecular Cell Biology. 2021 https://pmc.ncbi.nlm.nih.gov/articles/PMC7963035/
- Walker KA. Inflammation and neurodegeneration: chronic inflammatory mechanisms in dementia. 2019 https://pmc.ncbi.nlm.nih.gov/articles/PMC6563718/


