Rhonda Patrick· PhD
Aerobic exercise (120 minutes per week) significantly lengthened telomeres, a biomarker for healthy aging, in white blood cells after 24 weeks in previously inactive, highly stressed older adults.
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The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
Aerobic exercise (120 minutes per week) significantly lengthened telomeres, a biomarker for healthy aging, in white blood cells after 24 weeks in previously inactive, highly stressed older adults.
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At the end of six months, their stress was lower, their telomeres were longer compared to the control group.