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Everyone needs good quality sleep. Good sleep is essential for health, while poor sleep increases morbidity and mortality risk.1
Sleep is also crucial for athletic performance and recovery.2 Even though physical activity (PA) and exercise improve sleep,3 poor sleep is prevalent among elite-level athletes.4 We therefore propose a modified, inverted U-shaped, dose-response relationship between PA and sleep (figure 1), and highlight the need for more research on the PA-sleep dose-response relationship. In this editorial, we briefly discuss the current understanding of the dose-response relationship of PA and sleep, describe the paradox of sleep in athletes, illustrate our hypothetical model, and outline where future research is needed.
Contributors All authors contributed to the conception of this editorial. RSF wrote the first draft of the manuscript. ES and TL-A provided key edits and wrote portions of the manuscript.
Funding Funding for this work was provided to TL-A by the Canada Research Chairs Program, and the Office of the Vice-President, Research & Innovation, University of British Columbia.
Competing interests None declared.
Provenance and peer review Not commissioned; externally peer reviewed.