Feeling well-rested is one simple way to gauge sleep quality. Physical activity can influence sleep, but researchers are still learning how beginning, maintaining, or giving up regular activity may change how restful sleep feels.
It may not be enough to simply stay active throughout the day. New research suggests that structured exercise may be more important for better sleep, while ordinary daily movement may not have the same effect.
To explore the relationship between exercise and sleep, researchers examined data from over 700,000 Japanese adults who received annual health assessments in 2021 and 2022. Participants reported their physical activity and sleep quality through a standardized questionnaire. The researchers excluded people with previously diagnosed sleep disorders as well as those who reported sufficient sleep restfulness at baseline.
The study examined both everyday movement and regular exercise. Starting regular exercise was linked to a 37% greater likelihood of improved sleep restfulness, while continuing the habit was associated with a 23% greater likelihood of better sleep. Stopping exercise was tied to less restful sleep, whereas general daily activity showed no consistent relationship to improving sleep quality.
Exercise refers to intentional workouts built into your day, whether that’s a brisk 30-minute walk, a run, a bike ride, or strength training. This type of purposeful activity is different from incidental movement, like walking around the house, pacing during a phone call, or moving around while running errands. Daily steps are still important for overall health, but when it comes to sleep quality, planned exercise may offer benefits that everyday movement alone does not.
If you’ve stopped exercising regularly, getting back into a routine may be a simple way to support better sleep. Starting regular exercise showed a stronger connection to improved sleep than simply continuing an established routine, although maintaining regular exercise was still linked to better sleep. Daily movement and step counts are good for overall health, but they may not replace the sleep benefits of intentional, structured exercise.
To view the original scientific study click below:
Initiation, Maintenance, and Discontinuation of Habitual Exercise and Perceived Sleep Restfulness: A Population-Based Cohort Study
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