New Research Reveals How Humans Could Live Up to 156 Years

Key Points:

• Researchers have developed a mathematical model indicating humans could theoretically live up to 156 years if all reversible aging processes except somatic mutations are eliminated, highlighting DNA damage as a key limit to longevity.
• The study identifies non-dividing tissues—neurons in the brain and cardiomyocytes in the heart—as the primary bottlenecks to lifespan, since these cells cannot regenerate or dilute accumulated DNA mutations.
• Somatic mutations accumulate irreversibly over time and are currently untreatable, setting a hard biological limit on lifespan despite potential advances in anti-aging therapies targeting other mechanisms.
• The model suggests that even with all other aging hallmarks removed, lifespan would only increase marginally beyond 156 years, emphasizing that genomic damage accounts for roughly half the gap between theoretical immortality and actual human longevity.
• Future research aims to expand the model to include additional aging factors like mitochondrial dysfunction and telomere shortening, with the goal of creating a comprehensive ranking of aging mechanisms to better guide therapeutic strategies.