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Exercise may protect memory after sleep loss

A 20-minute exercise bout and 90-minute nap produced similar episodic memory performance following 30 hours of wakefulness but engaged distinct neural mechanisms.

  • By

  • Andrea Surnit

  • September 2, 2026

  • 4 min

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  • 1

    A 20-minute exercise bout and a 90-minute nap improved episodic memory performance after 30 hours of wakefulness.

  • 2

    Both interventions resulted in higher hit rates compared to a control group, with exercise showing a 21% increase and napping a 23% increase.

  • 3

    Participants who napped reported less postintervention fatigue than those in the exercise and control groups.

  • 4

    EEG analyses indicated that exercise and napping engaged distinct neural mechanisms for memory encoding.

  • 5

    The study's limitations included the lack of a separate nap-control group and the potential mismatch in intervention durations.

Original Source(s)

Exercise may protect memory after sleep loss

  • by Andrea Surnit

  • September 2, 2026

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