Salivary cortisol and sleep problems among civil servants

Psychoneuroendocrinology, 05/29/2012

Surprisingly, low morning cortisol was associated with increased sleep problems during a four–week period prior to sampling among 4066 Danish civil servants. At follow–up three–month later, those with sleep problems had a flattened cortisol profile. Those with awakening problems also had low salivary cortisol in general.

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