Researchers have developed a mathematical model to determine how long a person could live in conditions where medicine completely overcomes the main mechanisms of aging. As reported by The Independent, scientists modeled an ideal scenario in which chronic inflammation, mitochondrial dysfunction, and the accumulation of aging cells have been eliminated. The only factor retained in the model was somatic DNA mutations. ### Why Aging Cannot Be Completely Overcome The authors of the study explain that DNA mutations inevitably occur throughout a person's life. They arise during cell division, as well as under the influence of metabolic processes and environmental factors. Even the most advanced technologies, according to the researchers, cannot fully prevent the accumulation of such damage. Over time, errors in genetic material reach a critical level and begin to disrupt the functioning of the body. ### Which Organs Age the Fastest The study showed that different organs respond differently to the accumulation of mutations. The most vulnerable are the **brain and heart**. Most cells in these organs hardly renew after a person is born, so damage gradually accumulates in them. The situation is different for the liver and some other organs, whose cells can regularly renew and replace damaged ones. ### How Long a Person Could Live By combining data from all organs, the researchers concluded that even with the complete elimination of known aging mechanisms, the average human lifespan would be **between 146 and 194 years**. This is almost double the current average lifespan, which is about **79 years**, but immortality is not on the table. According to the researchers, the inevitable accumulation of DNA mutations remains the main biological limitation of human life. The authors of the study believe that conquering aging itself will not make a person immortal. Until science learns to fully prevent the accumulation of genetic errors, the natural limit of human lifespan will likely remain around **200 years**.