Effects of a daylight intervention in the morning on circadian rhythms and sleep in geriatric patients: a randomized crossover trial.

Eur Geriatr Med · 2025 · PMC11850413 · PMID 39627630

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a positive trendno p-value reported

Conclusion A daylight intervention in the morning led to a positive trend in cortisol and melatonin rhythmicity, whereas no improvement in subjective sleep quality was found.

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