• A study suggests that middle-aged and older adults with stronger, more regular daily patterns of activity and rest showed signs of slower biological aging.
• Participants with clearer differences between daytime activity and nighttime rest, and less fragmented routines, had more ‘youthful’ physiological age scores.
• The associations remained significant even after researchers accounted for factors including chronological age, sex, education, and certain health conditions.
• The findings suggest that rest-activity rhythms could become targets for interventions, potentially using wearable devices or lifestyle changes, aimed at slowing the aging process.

Written by Peter Morales-Brown on May 13, 2026 — Fact checked by Jill Seladi-Schulman, Ph.D.

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