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The Claim

Human biological immortality is possible within the laws of physics and biology because telomerase can stop telomere shortening.

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The Short Version

Telomerase can counteract telomere shortening and extend the lifespan of some cells, but that does not establish that humans can become biologically immortal. The evidence shows aging is multifactorial, and widespread telomerase activation can undermine anti-cancer defenses. The claim takes a real cellular phenomenon and overstates it into an unsupported organism-level conclusion.

Caveats

  • The claim conflates cellular immortalization in laboratory settings with whole-human immortality.
  • Telomere shortening is only one contributor to aging; stopping it would not address all major aging processes.
  • Telomerase activation is deeply entangled with cancer risk, so it cannot be treated as a simple immortality switch.

The Receipts

  1. Telomerase and the aging process - PMC - NIH

    PMC - NIH

  2. The relationship between telomere length and aging-related diseases - PMC

    PMC

  3. Telomerase-Mediated Anti-Ageing Interventions - PubMed - NIH

    PubMed

  4. Telomeres, lifestyle, cancer, and aging - PMC - NIH

    PMC

  5. Mechanisms of telomere loss and their consequences for chromosome instability - PMC

    PMC

  6. Why Is Telomere Length So Important? - The Scientist

    The Scientist

  7. The significance of telomerase activation and cellular immortalization in human cancer - Oxford Academic

    Oxford Academic

  8. ASU scientists unveil a hidden secret of the immortality enzyme telomerase

    Arizona State University

  9. Telomere extension turns back aging clock in cultured human cells, study finds

    Stanford University School of Medicine

  10. Telomeres and Telomerase in Cellular Aging (Senescence) | Embryo Project Encyclopedia

    Embryo Project Encyclopedia

+ 1 more sources — see the full list on Lenz

Filed Under

TelomeraseTelomeres

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