Exercise before bed is linked with disrupted sleep

This article has been reviewed according to Science X's editorial process and policies . Editors have highlighted the following attributes while ensuring the content's credibility: Actual exercise timing and strain associations with sleep and nocturnal autonomic activity. Credit: Nature Communications (2025). DOI: 10.1038/s41467-025-58271-x Exercise too close to bedtime may affect sleep duration, timing and quality, new research led by Monash University has found. More strenuous workouts closer to bedtime coincided with greater disruptions to sleep and nighttime cardiac activity. Published in Nature Communications, the study found that exercising four hours or less before bedtime was linked to falling asleep later, getting less and worse quality sleep, and having a higher resting heart rate and lower heart rate variability. It is the first and largest study to identify this. The study involved an international sample of 14,689 people monitored across one year, resulting in four mil ... Read full article.