Human DNA changes over the course of a lifetime
Extensive scientific evidence confirms that human DNA undergoes continuous changes throughout a lifetime, including the accumulation of somatic mutations and alterations in DNA methylation patterns associated with aging.
The claim is specific, empirical, and falsifiable. Multiple retrieved papers directly support the fact that somatic mutations and epigenetic changes (such as DNA methylation) occur in human DNA over a lifetime.
Peijun Ren, Xiao Dong, Jan Vijg. Age-related somatic mutation burden in human tissues. 2022. https://doi.org/10.3389/fragi.2022.1018119
Paper [0] reviews how postzygotic somatic mutations accumulate in all human tissues during development and aging.
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Peter Vrtačnik, Lara G. Merino, Santhilal Subhash, Hafdís T. Helgadóttir, Matthieu Bardin, Fabiana Stefani, Depin Wang, Ping Chen, Irene Franco, Gwladys Revêchon, Maria Eriksson. Induced somatic mutation accumulation during skeletal muscle regeneration reduces muscle strength. 2025. https://doi.org/10.1038/s43587-025-00941-y
Paper [1] discusses the accumulation of somatic mutations and genomic instability in post-zygotic cells during aging.
Samuel. J. C. Crofts, Eric Latorre-Crespo, Tamir Chandra. DNA methylation rates scale with maximum lifespan across mammals. 2023. https://doi.org/10.1101/2023.05.15.540689
Paper [2] shows that DNA methylation rates change with age across mammalian lifespans.
Ying Gan, Chenghua Cui, Shengyan Xiang, Baozhen Zhang, Dajun Deng. Effects of <i>P16</i> DNA Methylation on Proliferation, Senescence, and Lifespan of Human Fibroblasts. 2018. https://doi.org/10.1101/405407
Paper [3] demonstrates age-related changes in DNA methylation patterns, such as P16 DNA methylation, affecting human cell lifespan.
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