Under ideal biological conditions, humans could in theory live 146 to 194 years, more than twice today's average US life expectancy. That is the headline number from a new computational biology study published in the journal npj Aging in July 2026.
The figure is a mathematical estimate, not a clinical prediction. It comes from a team at the Skolkovo Institute of Science and Technology in Russia, who built a model that tests what would limit human life if most reversible aspects of aging were somehow switched off.
Lead author Dmitrii Kriukov cautioned that the numbers are not a promise. "This is a mathematical estimate (though careful), not experimental data," he told ScienceAlert. He added that the estimated maximum is not "a verdict of inevitability."
For context, the oldest person ever verified is the French supercentenarian Jeanne Calment, who died in 1997 at 122 years and 164 days, per Guinness World Records.
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Average US life expectancy at birth is far lower. It reached 79 years in 2024, according to CDC data reported by the American Hospital Association.
Where the ceiling actually comes from
The Skoltech team, led by computational biologist Dmitrii Kriukov, built an incremental mathematical model of aging. They layered in one biological process at a time to isolate the effect of somatic mutations.
Those are DNA changes that accumulate in the body's cells over a lifetime. If somatic mutations were the only thing left driving aging, the model dropped the median lifespan from a theoretical no-aging baseline of about 1,759 years to roughly 156 years. Combining organ systems together produced the 146 to 194 year range.
Two tissues stood out as the tightest bottlenecks: brain neurons and heart muscle cells. Both cell types divide little or not at all after adulthood, so mutations gradually build up without being cleared by cell renewal. Regenerating tissues such as liver and skin held up far better in the model.
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Jordan Weiss, an assistant professor and aging researcher at New York University's Grossman School of Medicine, told Newsweek that the pattern matches what clinicians already see. Conditions like dementia and heart failure, he said, "fall heavily on precisely the tissues that cannot regenerate", in comments republished by Yahoo News.
What it does and does not mean
The paper is careful about what its numbers do not show. Somatic mutations alone cannot fully account for human aging, and the model deliberately left out mitochondrial dysfunction and chronic inflammation, two other well-documented drivers.
Egle Pavyde, a pharmacist and regenerative medicine researcher, put the finding in perspective. She told Newsweek, in comments carried by Vice, that DNA damage building up in cells "is one of the reasons we cannot live indefinitely but also shows that our bodies are complex systems and that it is only one piece of a much larger puzzle."
Practical longevity research still operates in far narrower territory. Scientists are focused on adding healthy years to lives that currently end in the 70s and 80s, mainly by preventing and treating heart disease, cancer and dementia. A theoretical 194-year lifespan is a modeling exercise, not a target any current therapy is chasing.
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Readers concerned about their own long-term health should discuss risk factors and prevention with their doctor rather than infer guidance from a computational study.
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