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Breathing route during sleep.

K Gleeson, C W Zwillich, K Braier

    The American Review of Respiratory Disease
    |July 1, 1986
    PubMed
    Summary
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    Men, especially older men, breathe more through their mouths during sleep, which may be linked to sleep apnea. Nasal breathing appears crucial for maintaining regular breathing patterns during sleep.

    Area of Science:

    • Respiratory Physiology
    • Sleep Medicine

    Background:

    • Nasal obstruction is linked to sleep apnea.
    • Normal airflow distribution during sleep is not well understood.

    Purpose of the Study:

    • Investigate normal nasal and oral airflow distribution during sleep.
    • Determine the relationship between breathing route and sleep apnea.

    Main Methods:

    • Studied 14 healthy adults (7 men, 7 women) using a sealed mask to separate nasal and oral airflow.
    • Employed standard sleep staging techniques.
    • Recorded ventilation during sleep.

    Main Results:

    • Men exhibited significantly higher mouth ventilation percentages during sleep compared to women.
    • Older men showed a positive correlation between age and mouth ventilation.

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  • Subjects with more apneas per hour, all men, had a higher percentage of mouth ventilation.

    • Conclusions:

    • Mouth breathing during sleep may be associated with sleep apnea.
    • Mouth breathing is more prevalent in men, particularly older men.
    • Nasal breathing might be important for maintaining ventilatory rhythmicity during sleep.