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Journal ArticleGeroScience·Jun 2026

Big Trial Asks If Fasting or Exercise Can Actually Slow Aging in Seniors

Key Insight

This study may soon show whether fasting or exercise better slows aging in older adults.


Scientists are launching a year-long trial to test whether exercise, time-restricted eating, or both together can slow biological aging. They will study 240 healthy adults aged 65 and up, tracking a DNA-based aging clock called Dunedin Pace of Aging. This is a plan for a study, so there are no results yet. It's worth watching if you're curious how fasting and workouts stack up head to head.

Conflict of Interest Disclosure: The authors declare no conflict of interest.

Disclaimer: Research summaries are provided for informational purposes only and do not constitute medical advice. Always consult a qualified healthcare professional before making changes to your health routine.