Health claim
“Zone 2 cardio training improves mitochondrial density and aerobic capacity”
Mixed / earlyMedium riskexercise
Evidence Summary
Some evidence supports this, but findings are inconsistent or limited in scope.
Specific claim about physiological adaptations from a defined exercise intensity; supported by exercise physiology research but presented without individualization caveats.
Extracted from
Peter Attia on The Best Exercises for LongevityPowerfulJRE
A 6-minute clip featuring Peter Attia discussing exercise strategies he associates with longevity, drawn from a longer podcast interview.
Watch breakdown →