Telomeres

What if… aging was reversible? What if scientists could treat the root cause of aging in our cells? Are telomeres the key to escaping aging? 

What are Telomeres? 

Telomeres are protective caps at the end of every chromosome in our bodies. They play a crucial role in protecting our chromosomes from deteriorating. 

Biological Age

The biological age of a cell greatly depends on the lengths of our telomeres. The longer the telomeres, the more protected our chromosomes are, which means a younger biological age. Every time our cells divide, our telomeres gradually shorten. When the telomeres become too short, the DNA becomes vulnerable to deterioration until the cell can no longer divide and function normally. These cells are known as senescent cells. 

The buildup of these senescent cells may make a person more susceptible to the following:

• Heart disease

• Stroke

• Diabetes

• Cancer

• Dementia

Turning Back Aging?

If there is a way to lengthen the telomeres of cells, then reversing one’s biological age would be possible. 

10-15% of cancer cells go through a biological mutation called Alternative Lengthening of Telomeres (ALT), which lengthens telomeres and allows the cell to continue dividing indefinitely. 

What if Scientists Could Find a Way to do Something Similar? 

Scientists have found that lifestyle habits can cause telomeres to lengthen:

• Diet: consuming a balanced diet including high fiber and unsaturated lipids may protect telomeres from damage

• Exercise: exercising is associated with longer telomere length and protection

• Stress: managing stress through strategies such as meditation may positively affect telomere aging

• Avoid smoking and alcohol use: alcohol and smoking cause users to experience faster levels of biological aging. 

Scientists have come up with a Hyperbaric Oxygen Therapy (HBOT), which involves patients “inhaling pure oxygen inside a pressurized environment.” This technique was able to increase the telomere lengths of patients aged 64 or older by over 20% and also reduce the number of senescent cells by up to 37%! 

A group of scientists at the Stanford University School of Medicine have also found a way to lengthen human telomeres by up to 1000 nucleotides by using modified messenger RNA. According to John Cooke, “This study is a first step toward the development of telomere extension to improve cell therapies and to possibly treat disorders of accelerated aging in humans.”

Works Cited

Conger, K. (2015, January 22). Telomere extension turns back aging clock in cultured human cells, study finds. News Center. https://www.med.stanford.edu/news/all-news/2015/01/telomere-extension-turns-back-aging-clock-in-cultured-cells.html#:~:text=Telomere%20extension%20turns%20back%20aging%20clock%20in%20cultured%20human%20cells%2C%20study%20finds,-By%20Krista%20Conger&text=Researchers%20delivered%20a%20modified%20RNA,numbers%20of%20cells%20for%20study

Schellnegger, M., Hofmann, E., Carnieletto, M., & Kamolz, L. P. (2024). Unlocking longevity: the role of telomeres and its targeting interventions. Frontiers in aging, 5, 1339317. https://doi.org/10.3389/fragi.2024.1339317

Tsoukalas, D., Fragkiadaki, P., Docea, A. O., Alegakis, A. K., Sarandi, E., Thanasoula, M., Spandidos, D. A., Tsatsakis, A., Razgonova, M. P., & Calina, D. (2019). Discovery of potent telomerase activators: Unfolding new therapeutic and anti-aging perspectives. Molecular medicine reports, 20(4), 3701–3708. https://doi.org/10.3892/mmr.2019.10614

Napchi, D. (2025, April 2). Telomeres and aging: Unlocking the key to Healthy Aging. Aviv Clinics USA. https://aviv-clinics.com/blog/science/reversing-the-aging-process-a-closer-look-at-telomeres/#:~:text=Short%20telomeres%20equate%20to%20an,a%20healthier%2C%20younger%20biological%20age