The "Aging" and "Youth" Inside a 117-Year-Old Woman—Unexpected Answers from Longevity Research

How far can humans age healthily?

The life of one woman offers new clues to this question. Maria Branyas, born in 1907 and passing away in 2024 at the age of 117 years and 168 days, was recognized as the world's oldest living person at the time. Her life spanned the history of the 20th and 21st centuries, having experienced the 1918 influenza pandemic, two World Wars, the Spanish Civil War, and the COVID-19 pandemic.

However, what scientists focused on this time was not just how long she lived. It was about why she was able to avoid severe illnesses and maintain relatively good health despite reaching the extreme age of 117. What was happening inside her body?

Dr. Manel Esteller and his research team at the Josep Carreras Leukaemia Research Institute conducted a highly detailed analysis using samples of Branyas's blood, saliva, urine, and feces. They examined a wide range of factors, including the genome, epigenome, proteins, metabolites, gene expression, and gut bacteria. It was a "comprehensive investigation of longevity" that aimed to decipher the body of a 117-year-old at the molecular level.

What makes this study intriguing is that it doesn't conclude "her body was simply young." Rather, Branyas's body showed clear signs of aging. The telomeres at the ends of her chromosomes were very short, her immune system exhibited age-related changes, and her B lymphocytes showed characteristics typical of the elderly. Clonal hematopoiesis, where age-related mutations accumulate in stem cells that become blood cells, was also observed.

These are elements that usually suggest an increased risk with aging: short telomeres, an immune system prone to inflammation, and mutations in blood cells. All of these could potentially relate to cancer, cardiovascular diseases, and blood disorders.

However, Branyas did not develop cancer, dementia, or major cardiovascular diseases. This is where the most important message of this study lies: having signs of aging does not necessarily equate to developing severe illnesses.

We often equate "aging" with "becoming ill." As we age, our bodies break down, diseases increase, and cognitive functions decline. This is a realistic concern for many. However, Branyas's body might have had a "defense mechanism" that prevented these signs of aging from directly leading to serious illnesses.

So, what was this defense mechanism?

One of the factors the research team found was genetic robustness. Branyas had rare genetic mutations related to immunity, brain health, cardiovascular protection, and mitochondrial function. In other words, she might have been born with some advantageous cards for longevity.

Additionally, the state of lipids in her blood was distinctive. Her VLDL cholesterol and triglycerides were low, while her HDL cholesterol was high. This is considered a favorable pattern for cardiovascular health. Furthermore, her level of chronic inflammation was remarkably low.

In aging research, chronic inflammation is a major theme. A state of ongoing inflammation in the body as one ages is believed to be related to various diseases such as heart disease, diabetes, dementia, and cancer. In English, this is sometimes referred to as "inflammaging." It is possible that the inflammation in Branyas's body was minimal.

Another major point of interest was her gut bacteria. Branyas's gut contained a high amount of bifidobacteria. Bifidobacteria are beneficial bacteria associated with anti-inflammatory effects and healthy metabolism. Generally, bifidobacteria tend to decrease with age, but they can be found in relatively high amounts in healthy centenarians and supercentenarians.

Reports also mentioned that she consumed about three yogurts a day for the last 20 years of her life. This part easily garners reactions on social media because it seems like a straightforward story: "Can eating yogurt lead to a long life?"

However, this needs to be read carefully. The research did not prove that yogurt directly contributed to her longevity. While yogurt might have had some positive impact on her gut environment, it alone cannot explain why she lived to 117. Genetics, diet, living environment, luck, resistance to infections, medical care, mental stability, and social connections must have all intertwined.

Another surprising result came from the analysis using the epigenetic clock. The epigenetic clock is a method to estimate biological age based on DNA methylation patterns. It is used as an indicator to estimate how much cells and tissues have aged, separate from chronological age.

In Branyas's case, her biological age was estimated to be younger than her actual age in multiple tissues and using multiple analytical methods. In one analysis, the difference was over 23 years. The number 117 is unimaginably old, but some of her cells might have behaved as if they were not as aged as her actual age.

The core of this research lies in the simultaneous existence of "signs of aging" and "signs of youth." Branyas's body was not completely free from aging. In fact, because she lived longer than anyone else, the traces of aging were clearly marked. Still, there seemed to be mechanisms at work that prevented this aging from progressing to severe illnesses.

This is important when considering the direction of longevity research. Many people might hope for "drugs to stop aging" or "methods to rejuvenate." However, what this study suggests is not to eliminate aging but to create a body that is resilient even as it ages. Humans age. Still, if we can suppress inflammation, regulate metabolism, maintain gut health, and prevent immune overreaction, we might be able to extend healthy lifespans.

There are various reactions to this study on social media.

In the comments section of SciTechDaily's article, reactions such as "Telomeres, diet, and genetics are all pieces of the longevity puzzle" were observed. One reader expressed that lifespan is greatly influenced by genetics, lifestyle, and luck. This can be seen as a realistic response to the study. Longevity cannot be explained by effort alone, genetics alone, or chance alone. It is likely the result of multiple factors coming together to finally reach the age of 117.

On the other hand, there were comments discussing lifespan from a faith perspective, viewing it as part of God's plan. Such reactions appearing in the comments of a scientific article indicate that the theme of longevity is not just a matter of medicine or biology. The question of how long a person lives is deeply connected to views on life, death, family memories, and religious beliefs.

On Reddit, in response to the question "What does a young genome mean?" there was an explanation suggesting it means genetically aging slower than average. Additionally, there were voices expressing that they felt the influence of family and genetics, noting that several relatives lived to around 100. Such reactions indicate that longevity research is a very personal theme for many people.

In other social media posts, reactions focusing on gut bacteria and yogurt were also prominent. Particularly, the specific habit of "three yogurts a day" is memorable for many people. However, caution is needed here as well. While yogurt can be part of a healthy diet, it is not a panacea for longevity. Researchers have not concluded a causal relationship.

On LinkedIn, a post introducing the paper by Cell Press gathered reactions. The fact that it attracted attention in a place with many experts and researchers indicates that this study is noteworthy not only for its general appeal but also in the context of aging research and preventive medicine.

Looking at the reactions on social media, it seems people's interests are divided into three main categories.

One is the view that "genetics plays a significant role." Extreme longevity like 117 years cannot be achieved by ordinary lifestyle habits alone. It is highly likely that rare genetic traits were involved.

The second is the view that "there might be hints in lifestyle habits." Yogurt, a Mediterranean diet, exercise, avoiding smoking and drinking, and reducing stress from human relationships. While these do not guarantee reaching 117 years, they cannot be ignored as factors that extend healthy lifespans.

The third is the view that "ultimately, luck also plays a big role." No matter how much one takes care of their health, it is impossible to completely avoid diseases, accidents, infections, and environmental factors. Longevity includes chance elements that cannot be controlled by personal effort.

Perhaps what this study indicates is that all three are related, not just one of them. There was a genetic foundation, an internal environment that suppressed inflammation, a balance of gut bacteria, good lipid metabolism, a certain consistency in lifestyle habits, and also the blessing of good fortune. As a result, Branyas might have reached the extreme age of 117.

However, there is a significant limitation to this study: the subject is one person. No matter how detailed the examination of one supercentenarian's body is, it cannot alone derive the laws of longevity for all humanity. It is necessary to further investigate whether the characteristics observed in Branyas are common to other long-lived individuals or unique to her.

Nevertheless, the value of this study is significant because examples of such multi-layered analysis of extremely long-lived individuals are very rare. While the number of people living over 100 is increasing, supercentenarians over 110 are exceedingly few. Moreover, cases where such individuals are relatively healthy and can provide samples for research are even more limited.

Branyas's body does not provide the "answer" to longevity but presents "questions." Why did she not become ill despite signs of aging? Why was her inflammation low? Why were her gut bacteria youthful? Why did her cells' biological age appear younger than her actual age? These questions will serve as important guides for future aging research.

The message we should take from this study is not a simple health regimen. Extreme interpretations like "just eat yogurt," "it's all genetics," or "it's futile because it's all luck" miss the intrigue of this research.

What is more important is that healthy longevity is a multi-layered phenomenon. It's not just about genes, gut bacteria, or diet alone; it involves inflammation, metabolism, immunity, the rate of cellular aging, living environment, mental stability, and social connections. Longevity might not be determined by a single switch but supported by the stability of the entire body's network.

Additionally, this study changes the perspective on "aging." Aging is unavoidable. However, aging and disease are not entirely the same. Even as we age, if there are mechanisms within the body that suppress the flow toward disease, it might be possible to live longer and healthier.

What was inside the body of the 117-year-old woman was not the secret to immortality. It was a very complex and resilient form of life where traces of aging and elements of youth coexisted.

What we should aim for might not be to stop time. Instead, it might be to maintain a body and mind that are as resilient as possible even as time progresses. To achieve this, it is important to lead a life that suppresses inflammation, maintain a diet that supports gut health, adopt habits that do not disrupt metabolism, value social connections, and keep a healthy distance from stress.

Branyas's 117-year life is valuable data for science and a prompt for us to consider "how to age." The answer to longevity is not in a single food or gene but in the countless balances quietly accumulating within our bodies every day.

Source URL Summary

・SciTechDaily
Referenced for general explanations of the research content, an overview of Maria Branyas, signs of aging, gut bacteria, epigenetic age, and reactions in the comments section.
https://scitechdaily.com/what-scientists-found-inside-a-117-year-old-woman-reveals-new-clues-to-long-life/

・Cell Reports Medicine Article Page
Referenced for publication information of the original paper "The multiomics blueprint of the individual with the most extreme lifespan."
https://www.cell.com/cell-reports-medicine/fulltext/S2666-3791%2825%2900441-0

・PubMed Article Information
Referenced for bibliographic information, journal, DOI, PMID, and publication date of the paper.
https://pubmed.ncbi.nlm.nih.gov/40997805/

・PMC Article Page
Referenced for full-text information of the paper and PMCID.
https://pmc.ncbi.nlm.nih.gov/articles/PMC12629823/

・Cell Press LinkedIn Post
Referenced for reactions from experts and readers on social media to the paper introduction.
https://www.linkedin.com/posts/cell-press_the-multiomics-blueprint-of-the-individual-activity-7376737201184862208-3jbs

・Reddit r/genetics Post
Referenced for general user reactions to "young genome" and genetic factors.
https://www.reddit.com/r/genetics/comments/1npjt5f/dna_study_of_117yearold_woman_reveals_clues_to_a/

・Reddit r/Microbiome Post
Referenced for social media reactions to gut bacteria and yogurt habits.
https://www.reddit.com/r/Microbiome/comments/1qhgy72/she_lived_to_117_how_three_yogurts_a_day_and_a/