Mouth Breathing: Why It Matters for Children and Adults
Breathing is something we do automatically, but the way we breathe matters. While occasional mouth breathing can happen during exercise, illness, or congestion, chronic mouth breathing may affect sleep, oral function, and overall health in both children and adults.
Healthy breathing patterns play an important role in airway stability, sleep quality, muscle function, and development.
What Healthy Breathing Typically Looks Like
In healthy breathing patterns, air moves through the nose with the lips gently closed and the tongue resting against the roof of the mouth. Nasal breathing helps warm, humidify, and filter the air before it reaches the lungs.
When breathing shifts primarily to the mouth, the muscles of the face, tongue, and airway may begin functioning differently over time.
Signs of Mouth Breathing
Some common signs of mouth breathing may include:
- Open mouth posture
- Dry mouth or chapped lips
- Snoring or noisy breathing during sleep
- Restless sleep
- Daytime fatigue
- Difficulty keeping the lips closed comfortably
- Frequent congestion
- Morning dry mouth or sore throat
- Low tongue posture
In children, mouth breathing may also influence facial growth and oral development over time.
Why Mouth Breathing Matters
Nasal breathing supports more efficient airflow and helps maintain healthy muscle patterns in the mouth and airway. Chronic mouth breathing is commonly associated with low tongue posture, altered swallowing patterns, and reduced support for the airway.
Research has shown that breathing patterns during childhood can influence facial growth and airway development. In both children and adults, mouth breathing may contribute to disrupted sleep, snoring, and reduced airway stability during the night.
The American Academy of Pediatrics recommends evaluation for children with persistent snoring or signs of sleep-disordered breathing, since disrupted breathing during sleep can affect sleep quality, behavior, and overall well-being.
What Can Contribute to Mouth Breathing
Several factors can contribute to mouth breathing, including:
- Nasal congestion or allergies
- Enlarged tonsils or adenoids
- Habitual open mouth posture
- Low tongue posture
- Structural airway restrictions
Because multiple factors may be involved, evaluation by appropriate healthcare providers is important when concerns are present.
How Myofunctional Therapy Can Help
Myofunctional therapy focuses on improving the function of the muscles involved in breathing, swallowing, and oral posture. Therapy may help improve tongue posture, lip seal, and nasal breathing patterns in both children and adults.
When used alongside appropriate medical or dental care, improving muscle function can help support healthier breathing habits and airway stability.
Supporting Healthy Breathing Patterns
Awareness of breathing patterns is often the first step toward improving them. Identifying chronic mouth breathing early can help support better sleep, improved comfort, and healthier long-term breathing habits.
Warmly,
Sandra M. Randolph, RDH, OMT
Founder, Montana Myo