A longevity model identified brain neurons and heart muscle cells as major bottlenecks to life span because they divide little or not at all after adulthood.
Notes on verification
Confirmed directly by the peer-reviewed npj Aging study and corroborated by multiple independent science news outlets (Newsweek, ScienceAlert, Super Age). Also consistent with established biology on post-mitotic neurons and cardiomyocytes. [tier=gold indep_score=0.838 clusters=4 claim_tier=notable]
Sources
- Longevity: Humans Could Live for Up to 194 Years, Researchers Say (seed:health_and_medicine)
- https://www.nature.com/articles/s41514-026-00421-6 (corroboration)
- https://www.sciencealert.com/ultimate-limit-of-the-human-lifespan-may-be-identified-study-suggests (corroboration)
- https://www.newsweek.com/somatic-mutations-limit-human-lifespan-aging-study-12205984 (corroboration)
- https://superage.com/what-stops-us-from-living-to-200/ (corroboration)