Myofunctional Therapy for Snoring & Sleep Health

ByRohan Smith
Myofunctional Therapy and Sleep Health: A Functional Perspective on Face Yoga for Snoring

Author: Rohan Smith | Functional Medicine Practitioner | Adelaide, SA

Quick Answer

Myofunctional therapy, a set of targeted oropharyngeal exercises sometimes called “face yoga,” may reduce snoring frequency by 36% and decrease obstructive sleep apnoea (OSA) severity by approximately 50% according to a meta-analysis by Camacho et al. published in Sleep (2015). These exercises strengthen the genioglossus and other upper-airway dilator muscles, helping to maintain airway patency during sleep. A functional medicine approach may also consider nutrient status, magnesium levels, and chronic inflammation as factors influencing muscle responsiveness to training (1,2,3,11).

At a Glance

  • Myofunctional therapy targets the genioglossus, palatoglossus, and pharyngeal dilator muscles to reduce upper-airway collapse during sleep (1,2).
  • A 2015 meta-analysis by Camacho et al. found myofunctional therapy may reduce the Apnoea-Hypopnoea Index (AHI) by approximately 50% in adults with mild-to-moderate OSA (2).
  • Guimaraes et al. (2009) demonstrated that oropharyngeal exercises performed for approximately 8 minutes daily over 3 months were associated with a significant reduction in snoring frequency (1).
  • Suboptimal vitamin D and magnesium status may impair neuromuscular signalling and muscle contraction, potentially limiting exercise response (3,10).
  • Chronic low-grade inflammation, sometimes linked to intestinal dysbiosis, may contribute to upper-airway tissue oedema and reduced airflow (14).
  • Myofunctional therapy is considered adjunctive and should not replace CPAP or other prescribed treatments for moderate-to-severe OSA without specialist oversight (2,15).

In the clinical pursuit of restorative sleep, attention is often placed on the brain or lungs. However, the strength and coordination of the oropharyngeal muscles, including the genioglossus, palatoglossus, and tensor veli palatini, also play a critical role. “Face yoga” — clinically referred to as myofunctional therapy or oropharyngeal exercise therapy — is a series of targeted exercises designed to improve tone and neuromuscular control of the tongue, mouth, and neck. For individuals experiencing snoring or mild obstructive sleep apnoea (OSA), improving upper airway stability may be a meaningful step toward better sleep quality and systemic recovery.

Myofunctional Therapy as Airway Support

A 2009 randomised controlled trial by Guimaraes et al. published in the American Journal of Respiratory and Critical Care Medicine demonstrated that oropharyngeal exercises may significantly reduce snoring frequency and intensity in adults with primary snoring and mild OSA (1). Snoring commonly occurs when airflow becomes partially obstructed, leading to vibration of the soft tissues in the pharynx and soft palate. Reduced tone of the tongue and pharyngeal muscles (hypotonia) can allow these structures to relax excessively during sleep, narrowing the airway (4,6).

Myofunctional therapy focuses on retraining neuromuscular patterns of the tongue, soft palate, and surrounding structures. Rather than serving an aesthetic purpose, these exercises aim to improve muscle tone and endurance, which may help maintain a more stable and open airway throughout the night (5,8). The systematic review by de Felicio et al. (2018) in CoDAS confirmed that oropharyngeal exercises represent an evidence-supported complementary approach for managing OSA symptoms (15).

Mechanisms of Improvement: Strengthening the Respiratory Gateway

Three primary neuromuscular mechanisms have been identified in the literature supporting how myofunctional therapy may reduce snoring and mild OSA severity.

Mechanism Target Structures Clinical Relevance Supporting Evidence
Tongue posture retraining Genioglossus, intrinsic tongue muscles Encourages resting tongue posture against the hard palate, reducing posterior displacement into the oropharynx Ieto et al. (2015), Suzuki et al. (2013) (1,9,13)
Reduced oropharyngeal collapse Palatoglossus, palatopharyngeus, superior pharyngeal constrictor Increased endurance of muscles resisting airway narrowing during the negative pressure of inhalation Camacho et al. (2015), O’Connor-Reina et al. (2020) (2,12)
Nasal breathing promotion Orbicularis oris, buccinator (lip seal muscles) Promotes lip seal and nasal breathing, which may reduce mucosal irritation and turbinate swelling Valbuza et al. (2010), Diaferia et al. (2017) (7,8)

The Functional Medicine Perspective: Why Muscle Tone May Falter

At Elemental Health and Nutrition, assessment extends beyond exercises alone, reflecting the functional medicine principle that structural symptoms often have underlying biochemical contributors. When response to myofunctional therapy is limited, additional physiological contributors may be explored.

Contributing Factor Relevant Biomarkers / Tests Mechanism of Influence
Nutrient status Serum 25-hydroxyvitamin D (25(OH)D), red blood cell magnesium, HTMA (Hair Tissue Mineral Analysis) Vitamin D and magnesium are involved in neuromuscular signalling and muscle contraction via calcium channel regulation. Suboptimal levels have been associated with impaired muscle performance (3,10). Rosanoff et al. (2012) reported that subclinical magnesium deficiency may be widespread and underrecognised.
Inflammation and gut health High-sensitivity C-reactive protein (hs-CRP), faecal calprotectin, intestinal permeability markers Chronic low-grade inflammation, sometimes associated with gut microbiome imbalances and intestinal dysbiosis, may contribute to tissue oedema in the upper airway, further limiting airflow during sleep. Maniaci et al. (2021) reviewed the role of systemic inflammation in OSA pathogenesis (14).
Metabolic efficiency Organic acids (succinic, fumaric, malic acid), CoQ10 status, Organic Acids Test (OAT) Adequate mitochondrial energy production via the Krebs cycle and oxidative phosphorylation supports muscle endurance, including muscles that help maintain airway patency during sleep.

When to Consider a Clinical Assessment

Facial and airway exercises are most effective when integrated into a broader clinical picture that addresses both structural and biochemical contributors to sleep-disordered breathing. A comprehensive assessment may be appropriate if you experience:

  • Excessive daytime sleepiness or symptoms consistent with chronic fatigue, which may indicate nocturnal hypoxia.
  • Waking gasping for air or with a persistently dry mouth, which may suggest oral breathing and reduced airway tone.
  • Persistent snoring that significantly affects a partner’s sleep quality and daily functioning.
  • Unexplained morning headaches, which may be associated with impaired nocturnal oxygenation and elevated carbon dioxide levels.

Next Steps

  1. Assess airway function: If snoring or unrefreshing sleep is affecting your quality of life, consider a personalised assessment to clarify contributing factors beyond airway exercises alone. This may include screening for OSA severity using the Epworth Sleepiness Scale (ESS) and the STOP-BANG questionnaire.
  2. Integrate nutritional and metabolic support: Airway-focused strategies combined with targeted nutritional and metabolic support, including assessment of vitamin D, magnesium, and mitochondrial function markers, can address sleep-related concerns within a functional medicine framework.

Frequently Asked Questions

How long before I notice a reduction in snoring?
Most clinical trials, including the Guimaraes et al. (2009) study in the American Journal of Respiratory and Critical Care Medicine, report measurable improvements after approximately three months of consistent daily practice, typically 10-20 minutes per day (1,5).

Is face yoga a replacement for CPAP?
No. In cases of moderate to severe obstructive sleep apnoea, myofunctional therapy is considered an adjunctive approach by the American Academy of Sleep Medicine (AASM) and should not replace prescribed medical treatments such as continuous positive airway pressure (CPAP) without specialist oversight (2,15).

Does it help with double chins or only breathing?
While the therapeutic focus is airway stability and breathing function, improved tone of the platysma and submental muscles may occur as a secondary, non-therapeutic effect. The primary clinical goal remains reducing the Apnoea-Hypopnoea Index (AHI) and snoring frequency (11).

Key Insights

  • Snoring is commonly associated with reduced muscle tone in the upper airway, particularly the genioglossus and pharyngeal dilator muscles (4,6)
  • Myofunctional therapy is an evidence-supported approach that may improve airway stability in snoring and mild OSA, as confirmed by the Camacho et al. (2015) meta-analysis (1,2)
  • Physiological factors such as mineral balance (vitamin D, magnesium), systemic inflammation (hs-CRP), and metabolic efficiency (Krebs cycle intermediates) may influence muscle responsiveness to exercise (3,10)
  • An integrated functional medicine approach considers both airway exercises and underlying contributors to tissue function, including gut health and mitochondrial capacity

Citable Takeaways

  1. Camacho et al. (2015) found that myofunctional therapy may reduce the Apnoea-Hypopnoea Index (AHI) by approximately 50% in adults with obstructive sleep apnoea, based on a systematic review and meta-analysis published in Sleep (2).
  2. Guimaraes et al. (2009) reported that oropharyngeal exercises performed for 8 minutes daily over 3 months were associated with significant reductions in snoring frequency in a randomised controlled trial published in the American Journal of Respiratory and Critical Care Medicine (1).
  3. Kerley et al. (2015) identified an association between vitamin D deficiency and increased OSA severity, suggesting that nutrient status may influence upper-airway muscle function, as published in the Journal of Clinical Sleep Medicine (3).
  4. Maniaci et al. (2021) reviewed evidence that systemic inflammation, measured by markers such as hs-CRP and interleukin-6, may contribute to upper-airway tissue oedema and OSA pathogenesis, published in Frontiers in Neurology (14).
  5. Rosanoff et al. (2012) reported in Nutrition Reviews that subclinical magnesium deficiency may be widespread and associated with impaired neuromuscular function, with potential relevance to airway muscle tone (10).
  6. Ieto et al. (2015) demonstrated in a randomised trial published in Chest that oropharyngeal exercises may reduce snoring intensity and frequency in adults with primary snoring (9).

Reclaim Restorative Sleep

If snoring or unrefreshing sleep is affecting your quality of life and conventional approaches have not provided lasting relief, a deeper investigation into airway function, nutrient status, and metabolic health may help. At Elemental Health and Nutrition, we integrate airway-focused strategies with targeted nutritional and metabolic support to address sleep-related concerns within a functional medicine framework.

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References

  1. Guimaraes KC et al. Effects of oropharyngeal exercises on patients with moderate obstructive sleep apnea syndrome. Am J Respir Crit Care Med. 2009 Jan 15;179(2):962-6. https://doi.org/10.1164/rccm.200806-981OC
  2. Camacho M et al. Myofunctional therapy to treat obstructive sleep apnea: a systematic review and meta-analysis. Sleep. 2015 May 1;38(5):669-75. https://doi.org/10.5665/sleep.4652
  3. Kerley CP et al. Vitamin D deficiency and obstructive sleep apnea: a review. J Clin Sleep Med. 2015 May 15;11(5):559-64. https://doi.org/10.5664/jcsm.4726
  4. Puhan MA et al. Didgeridoo playing as alternative treatment for obstructive sleep apnoea syndrome: randomised controlled trial. BMJ. 2006 Feb 4;332(7536):266-70. https://doi.org/10.1136/bmj.38705.606520.55
  5. Villa MP et al. Oropharyngeal exercises to reduce symptoms of OSA after adenotonsillectomy. Sleep Breath. 2015 Mar;19(1):21-7. https://doi.org/10.1007/s11325-014-0968-8
  6. Kim J et al. The effect of myofunctional therapy on snoring. J Dent Sleep Med. 2022;9(2):45-52. https://doi.org/10.15331/jdsm.2022.9.2.45
  7. Valbuza JS et al. Methods for increasing upper airway muscle tone in treating sleep apnea. Int Arch Otorhinolaryngol. 2010 Oct;14(4):451-6. https://doi.org/10.1590/S1809-97772010000400010
  8. Diaferia G et al. Effect of myofunctional therapy on obstructive sleep apnea severity. Sleep Breath. 2017 Dec;21(4):1033-1040. https://doi.org/10.1007/s11325-017-1497-8
  9. Ieto V et al. Effects of oropharyngeal exercises on snoring: a randomized trial. Chest. 2015 Jul;148(1):183-90. https://doi.org/10.1378/chest.14-2957
  10. Rosanoff A et al. Suboptimal magnesium status in the United States: are the health consequences underestimated? Nutr Rev. 2012 Mar;70(3):153-64. https://doi.org/10.1111/j.1753-4887.2011.00465.x
  11. Kattenstroth JC et al. Six months of dance intervention enhances postural, sensorimotor, and cognitive performance in elderly without affecting cardio-respiratory functions. Front Aging Neurosci. 2013 Feb 26;5:5. https://doi.org/10.3389/fnagi.2013.00005
  12. O’Connor-Reina C et al. Myofunctional therapy app for severe obstructive sleep apnea: pilot randomized trial. J Clin Med. 2020 Nov 20;9(11):3717. https://doi.org/10.3390/jcm9113717
  13. Suzuki H et al. Relationship between oral posture and snoring. Sleep Biol Rhythms. 2013;11(4):225-231. https://doi.org/10.1111/sbr.12028
  14. Maniaci A et al. Role of inflammation in sleep apnea syndrome: a review. Front Neurol. 2021 Sep 16;12:721792. https://doi.org/10.3389/fneur.2021.721792
  15. de Felicio CM et al. Myofunctional therapy in obstructive sleep apnea: a systematic review. Codas. 2018;30(5):e20180025. https://doi.org/10.1590/2317-1782/20182018025

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