Clinical Insights
Article
July 1, 2026
Why Cancer Prevention Begins With Longevity Medicine
Age remains the greatest predictor of cancer risk, and eligibility for traditional cancer screening programs is often linked to chronological age.
However, longevity medicine takes a different approach. Rather than focusing solely on disease detection, it seeks to understand and influence the biological processes that drive aging itself.
Chronological Age vs Biological Aging
Chronological age measures how many years we have lived. Biological age reflects how our bodies have changed over time. Two people of the same age can experience biological aging very differently.
Over time, lifestyle and environmental factors such as smoking, poor diet, physical inactivity, UV exposure, and air pollution place repeated stress on the body. In response, the body activates protective processes including inflammation and immune defenses that help repair damage and eliminate threats.
These responses are essential in the short term. However, when exposures persist for years or decades, they can remain chronically activated. This ongoing low-grade inflammation, often referred to as inflammaging, can contribute to metabolic dysfunction and increased production of reactive oxygen species, sometimes called free radicals. [1]
When present in excess, these molecules can damage DNA and other cellular components. Although the body has sophisticated repair systems, damage can gradually accumulate over time as repair mechanisms become less efficient. Researchers now recognize these interconnected processes as important drivers of biological aging and many age-related diseases, including cardiovascular disease, diabetes, neurodegenerative disorders, and cancer. [1]
By slowing the biological processes that accompany aging, we may also help reduce the risk of diseases that emerge with age.
Lifestyle Habits Influence Healthspan, Not Just Lifespan
A study of more than 450,000 adults found that men who maintained healthy lifestyle habits gained more than six additional years free from major chronic diseases compared with those who followed few or none. Women gained more than four additional years free from chronic disease. [2]
Many of the same lifestyle and environmental factors associated with biological aging have also been linked to cancer risk.
Smoking is estimated to reduce life expectancy by approximately 10 years. [3] It is also linked to approximately 80% of lung cancer deaths and increases the risk of cancers affecting multiple organs. [4]
Alcohol consumption has been linked to at least seven cancer types, including cancers of the breast, liver, colorectum, esophagus, mouth, throat, and larynx. [5-6]
Recent estimates suggest that approximately 80% of cutaneous melanoma cases worldwide are attributable to ultraviolet radiation exposure. [7]
Long-term exposure to fine particulate air pollution has been associated with a 19% increased risk of lung cancer among people who have never smoked. [8]
Obesity has been associated with an increased risk of at least 13 cancer types and is estimated to contribute to approximately 4-8% of cancers globally. [9]
Intervening Earlier
Longevity medicine is not simply about identifying risk factors. It seeks to identify opportunities for intervention before disease develops.
Regular physical activity is among the most consistently studied interventions in both longevity medicine and cancer prevention. Exercise improves insulin sensitivity, reduces inflammation, supports mitochondrial health, and helps preserve immune surveillance.
A meta-analysis spanning more than 500 epidemiologic studies found that physically active individuals had a 10-25% lower risk of several cancers, including colon, breast, endometrial, bladder, lung, and esophageal cancers. [10]
Cancer screening also remains essential. Screening programs can identify disease at earlier and more treatable stages, while preventive measures such as vaccination against cancer-associated viruses can further reduce risk.
Where Longevity Medicine and Oncology Meet
Longevity medicine is an emerging clinical framework focused on understanding and addressing the biological processes that contribute to aging before disease appears.
This is why longevity medicine is increasingly relevant to oncology. It does not replace cancer screening, diagnostic testing, or treatment. Instead, it asks an earlier question:
What biological conditions may make disease more likely to emerge, and which of them can be modified before disease appears?
Nowadays you can find tests to measure biological age. Though biological age is not a diagnosis, and no biological clock can predict exactly who will or will not develop cancer, these tools may help patients and healthcare professionals move beyond generalized wellness advice toward more intentional prevention, risk assessment, and age-appropriate screening.
References
Li X, Li C, Zhang W, Wang Y, Qian P, and Huang H. Inflammation and aging: signaling pathways and intervention therapies. Sig Transduct Target Ther. 2023; 8(239).
The China Kadoorie Biobank Collaborative Group. Healthy lifestyle and life expectancy free of major chronic diseases at age 40 in China. Nat Hum Behav. 2023;7:1542-1550.
Jha P, Ramasundarahettige C, Landsman V, et al. 21st-century hazards of smoking and benefits of cessation in the United States. N Engl J Med. 2013;368(4):341-350.
Centers for Disease Control and Prevention. Risk Factors for Lung Cancer. Centers for Disease Control and Prevention. Updated October 23, 2024. Accessed June 16, 2026. https://www.cdc.gov/lung-cancer/risk-factors/index.html
Cancer Research UK. How does alcohol cause cancer? Cancer Research UK. Accessed June 16, 2026. https://www.cancerresearchuk.org/about-cancer/causes-of-cancer/alcohol-and-cancer/how-does-alcohol-cause-cancer
World Health Organization. No level of alcohol consumption is safe for our health. Published January 4, 2023.
Langselius O, Rumgay H, de Vries E, et al. Global burden of cutaneous melanoma incidence attributable to ultraviolet radiation in 2022. Int J Cancer. 2025;157(6):1110-1119.
De Guzman R, Schiller J. Air pollution and its impact on cancer incidence, cancer care and cancer outcomes. BMJ Oncol. 2025;4:e000535.
Pati S, Irfan W, Jameel A, Ahmed S, Shahid RK. Obesity and cancer: a current overview of epidemiology, pathogenesis, outcomes, and management. Cancers (Basel). 2023;15(2):485.
Friedenreich CM, Ryder-Burbidge C, McNeil J. Physical activity, obesity and sedentary behavior in cancer etiology: epidemiologic evidence and biologic mechanisms. Mol Oncol. 2021;15(3):790-800.