Key Takeaways

• A study in npj Aging explored the theoretical limits of human longevity using a mathematical aging model.
• Researchers estimated that somatic mutations could limit lifespan to around 156 years under specific theoretical conditions.
• The findings do not predict that humans will reach 156 years but provide insights into the biology of aging. 
• Brain neurons and heart cells may play a key role because they have limited capacity for renewal.
• More research is needed before these findings could lead to medical applications.

How far could humans push the limits of longevity? This question continues to interest researchers studying the biological mechanisms of aging.

A study published in the journal npj Aging explores this possibility through a theoretical model designed to better understand the factors that may limit human lifespan. However, the researchers emphasize that their work does not aim to predict the maximum age that humans could reach.

In this article, we review the main findings of this study and what they reveal about the biological mechanisms involved in aging.

How researchers studied the limits of human longevity

To analyze the factors that influence human lifespan, researchers from the Skolkovo Institute of Science and Technology (Skoltech) and the Artificial Intelligence Research Institute (AIRI) in Russia developed a mathematical model of aging.

Using this model, they studied the role of somatic mutations, which are DNA changes that appear in cells throughout life. The researchers then simulated a theoretical scenario in which certain aging mechanisms were neutralized in order to isolate the effects of these mutations.

The main findings of the study

According to the researchers’ calculations, somatic mutations could limit the median lifespan to around 156 years under this theoretical scenario. However, they emphasize that this estimate is based on specific conditions created by the model and does not represent real human aging. The researchers suggest that somatic mutations may represent one of several biological mechanisms involved in determining lifespan limits. 

Key concept: What are somatic mutations?

Somatic mutations are changes that occur in the DNA of body cells during a person’s lifetime.

They can appear as cells divide or due to natural cellular processes. Unlike inherited mutations, they are not passed on to future generations. Over time, the accumulation of these changes may affect how cells function and contribute to age-related changes.

How different organs influence the theoretical lifespan limit

The researchers also considered that aging may not affect all organs in the same way. 

The impact of somatic mutations can vary depending on how frequently cells are renewed and how tissues maintain their function over time.

Some organs, such as the liver, have a high capacity for cell renewal, which may help replace damaged cells and limit the accumulation of mutations.

In contrast, neurons in the brain and cardiomyocytes (heart muscle cells) are rarely replaced during adulthood. Because these cells remain in the body for many years, they may accumulate more changes over time.

Based on these differences between tissues, the researchers estimated that the theoretical median lifespan could range from 146 to 194 years, depending on the regenerative capacity of the organs included in the model.

What do these results really mean?

These findings do not show that humans will soon reach an age of 156 years. Instead, they suggest that somatic mutations could play an important role in the biological limits of longevity.

However, these mutations represent only one aspect of the aging process. Other biological mechanisms also contribute to the gradual decline of the body’s functions with age.

This study therefore provides additional insights into the mechanisms involved in aging, but it does not yet lead to concrete medical applications.

Level of evidence
This research is based on a mathematical model designed to simulate aging processes.

While it provides insights into potential biological limits of human longevity, the findings remain theoretical and require further validation through future studies.

What could this study change in practice?

This research does not currently provide a method to extend human lifespan. However, it could help researchers better identify certain mechanisms involved in aging and guide future longevity studies.

Current aging research is not only focused on increasing the number of years people live, but also on preserving health, independence, and quality of life as people age.

The limits of this theoretical approach

This study relies on a mathematical model and theoretical simulations that do not reproduce all aspects of human aging. The findings should therefore be interpreted as a framework for understanding longevity mechanisms rather than a prediction of future lifespan.

FAQ 

Can humans really live up to 156 years?

No. The 156-year estimate comes from a theoretical mathematical model and does not represent a prediction of human lifespan. 

What did the new longevity study discover?

Through mathematical simulation, the somatic mutations were found to potentially determine a limit to human life span. 

What are somatic mutations?

Somatic mutations are changes in DNA that occur in cells during a person’s lifetime. Unlike inherited mutations, they are not passed on to future generations.

Do somatic mutations cause aging?

Aging may be influenced over time by cellular aging caused by somatic cells but it can be linked to other processes. 

Which organs may limit human longevity according to the study?

The researchers suggest tissues that rarely divide cells, like the brain neurons or the cells in the heart muscle, may be more vulnerable to mutated cells.

Is this study a treatment for extending human lifespan?

No. The study does not provide a treatment to extend life. It offers insights into biological mechanisms that may influence aging.

Methodology

The information presented in this article comes from a scientific study published in the journal npj Aging, as well as institutional sources related to the research teams. The results discussed are based on a mathematical model and theoretical simulations designed to analyze the role of somatic mutations in aging.

Disclaimer

This article is for informational purposes only and does not replace medical advice. The study presented is based on theoretical modeling and does not predict how long humans can live. 

Sources

• Scientific article published in npj Aging (primary source of information)
  Somatic mutations impose an entropic upper bound on human lifespan — npj Aging (2026).
  npj Aging — Somatic mutations impose an entropic upper bound on human lifespan
• Skolkovo Institute of Science and Technology (Skoltech)
  Official research news about the study and the collaboration with AIRI.
  Skoltech — Researchers estimate the upper limit of human lifespan determined by somatic mutations
• Artificial Intelligence Research Institute (AIRI)
  Research institution involved in the study with Skoltech.
  Artificial Intelligence Research Institute (AIRI)