Your August longevity science roundup
New research on lifespan, collagen, protein, and immune aging.
Elysium Abstract <[email protected]>
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Elysium Health presents its August longevity science roundup, discussing topics such as human lifespan limits and the effects of collagen supplements on aging. The newsletter explores a new mathematical model that suggests humans could live up to 190 years if all age-related diseases are eliminated. It also delves into the role of somatic mutations in limiting human lifespan.
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Thanks for reading The Abstract. This month’s edition is 1,060 words, about a 4-minute read.
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The Abstract
Could humans live to 190? A new mathematical model explores the outer limits of human lifespan—even if every other known driver of aging could be eliminated. Also in the August edition of The Abstract: what the clinical evidence says about collagen supplements, whether eating less protein could support longevity, the growing effort to regenerate the aging thymus, and why vitamin B12 deficiency can sometimes look like aging.
Could humans live to 190—but not forever?
Imagine that every age-related disease—and every other known driver of aging—could be eliminated. How long would humans live? In a new mathematical model, researchers isolated one remaining source of decline: somatic mutations, the random DNA changes that accumulate in cells throughout life. Their simulations produced median lifespans between 146 and 194 years, suggesting that mutations alone might eventually prevent indefinite survival. The greatest constraints came from long-lived cells in the brain and heart, which are replaced less frequently than cells in regenerative tissues such as the skin and liver. These figures are not forecasts or experimental results, and exceptional individuals could theoretically live longer. Instead, the model offers a framework for estimating how much individual biological processes contribute to lifespan—and suggests that DNA damage may not be a major determinant of normal human lifespan.
The Expert’s Take:
"An interesting implication of this study is that somatic mutation accumulation may contribute relatively little to normal human lifespan. The authors' mathematical model predicts that mutation-driven loss of cell function would become life-limiting only after approximately 150–200 years, whereas the median human lifespan is approximately 80 years. If the model is approximately correct, then most humans die from other aging processes long before somatic mutation accumulation reaches levels sufficient to impair organ function. My take from this paper is that somatic mutation may not be a major determinant of normal human lifespan, despite its current inclusion within the broader hallmark of genomic instability."
Stuart Kim, Ph.D.
Professor Emeritus of Developmental Biology and Genetics at Stanford University School of
Medicine, member of Elysium’s Scientific Advisory Board
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THIS MONTH
What We’re Reading
These are third-party articles about science that we find interesting but have no relationship to Elysium or any of our products. Elysium’s products are not intended to screen, diagnose, treat, cure, or prevent any disease.
What does the evidence say about collagen supplements?
A new review of human clinical research finds that oral collagen peptides may improve several visible and structural measures of skin aging. Across studies, supplementation was associated with better hydration and elasticity, reduced wrinkle appearance, and improvements in the skin’s extracellular matrix. The strongest results were linked to low-molecular-weight, hydroxyproline-rich peptides, while collagen source—whether marine, bovine, or porcine—did not consistently determine effectiveness. Early studies also suggest possible benefits for hair strength, nail growth, and wound healing, although the evidence in these areas is less established. The review adds to evidence that collagen peptides can support skin health from within. (Nutrients)
When it comes to protein, more may not always be better
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