Article: Respiratory rhythms can help predict insomnia.

The breathing and heart rates and cortisol levels of women with metastatic breast cancer can be used to predict if they'll suffer from chronic insomnia and sleep disruptions, a common complaint from patients who want to maintain their quality of life, according to a study by scientists at the University of Rochester Medical Center.

This report, published in the Journal of Clinical Sleep Medicine, is the first to identify the body's parasympathetic nervous system, a branch of the autonomic nervous system that controls breathing and heart rates and the body's response to stress, as a contributor to poor sleep, which is a persistent problem for women with breast ...

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