Mouth Breathing Impairs Sleep Quality and Daytime Alertness

Sano M, Sano S, Kato H, Arakawa K (2018) International Journal of Environmental Research and Public Health

Key Takeaway

Mouth breathing during sleep is associated with poorer sleep quality, increased snoring, and reduced daytime alertness.

Summary

This study examined the relationship between mouth breathing during sleep and various sleep quality outcomes. Researchers assessed breathing patterns during sleep and correlated them with subjective and objective sleep measures.

Mouth breathers had significantly worse sleep quality scores, more frequent snoring, and reported greater daytime sleepiness compared to nasal breathers. The association persisted after controlling for other factors.

These findings support the rationale for interventions like mouth taping that promote nasal breathing during sleep.

Methods

  • Cross-sectional study design
  • Assessment of sleep breathing patterns
  • Sleep quality questionnaires
  • Daytime alertness measures

Key Results

  • Mouth breathing associated with worse sleep quality
  • Increased snoring in mouth breathers
  • Greater daytime sleepiness
  • Effects independent of BMI and other factors

Limitations

  • Cross-sectional design (no causation)
  • Self-reported breathing patterns
  • Did not test interventions

Related Interventions

Source

View on PubMed →

DOI: 10.3390/ijerph15061220