Across every intervention and control group in three separate mouse studies, the estimated rate of vitality decline was consistently lower than the rate of survival decline; for example, female mice on 40% caloric restriction had a mean vitality-decline rate of 0.00011 compared to a survival-decline rate of 0.00079.
Notes on verification
Core qualitative finding (vitality decline consistently slower than survival decline across all groups in three mouse studies) is corroborated by the peer-reviewed GeroScience publication's abstract. The specific numeric example (0.00011 vs 0.00079 for 40% caloric restriction females) could not be independently cross-verified from an external source, relying on the original paper itself. [tier=silver indep_score=0.925 clusters=2 claim_tier=notable]
Sources
- Life-extending interventions do not necessarily result in ... - PMC (seed:health_and_medicine)
- https://link.springer.com/article/10.1007/s11357-025-01925-x (corroboration)
- https://mouseion.jax.org/stfb2026/74/ (corroboration)