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Abstract
Salivary cortisol is a non-invasive biomarker used to assess sleep quality.
- Sleep disturbances may influence the function of the hypothalamic-pituitary-adrenal (HPA) axis.
- Cortisol is central to the body's stress response and follows a daily rhythm.
- The relationship between salivary cortisol levels and sleep outcomes is currently not well understood.
- This scoping review aims to evaluate existing literature on salivary cortisol and sleep.
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