Research
Hormonal
Long-term endurance exercise elevates SIRT3 expression to levels comparable to young individuals, potentially linking exercise benefits to caloric restriction pathways.
Endurance exercise may trigger longevity pathways (SIRT3) similar to caloric restriction. You do not need to starve yourself to gain these molecular benefits; consistent aerobic activity achieves the same SIRT3 elevation.
GoodSupportsHIGH confidence
SIRT3 expression was lower with age in sedentary but equally elevated regardless of age in endurance-trained individuals.
Why this rating
Cross-sectional data showing association, not causal proof of lifespan extension in humans.
Source
Endurance Exercise as a Countermeasure for Aging
Ian R. Lanza et al. · Diabetes · 2008
DOI 10.2337/db08-0349
cross_sectional · n=42Cited 582×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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- Long-term endurance exercise prevents age-related declines in insulin sensitivity and mitochondrial oxidative capacity, rendering these functions comparable to those of young sedentary individuals.Good
- While endurance exercise normalizes most mitochondrial protein expression and ATP production capacity, it does not fully restore mitochondrial DNA (mtDNA) abundance or all nuclear transcription factors to young levels.Good
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