What the research investigated: The relationship between cortisol levels during sleep and sleep quality in menopausal women, with an emphasis on sleep structure rather than subjective insomnia.

Study design: An observational study measuring overnight cortisol levels and detailed sleep architecture (via polysomnography) in menopausal women. Participants provided self-reported sleep quality assessments alongside biological data.

Key findings:

• Higher overnight cortisol levels were linked to objective sleep disturbances (e.g., reduced slow-wave and REM sleep).
• No significant relationship was found between cortisol and self-reported insomnia or daytime sleepiness.
• Suggests that elevated cortisol in menopause disrupts sleep quality even when changes aren't perceptible — underscoring a hidden impact of hormonal stress.

🔗 Read more about the study methods and outcomes here.

This article is for educational and general wellness purposes only. It is not medical advice and is not intended to diagnose, treat, cure, or prevent any disease. If you are noticing changes in your body or have questions about your health, please consult a knowledgeable healthcare provider.