How Myofunctional Therapy Can Help Reduce Snoring and Sleep Apnea Naturally
If you or someone you love snores, it might seem harmless—or just a funny, annoying habit. But snoring is often a sign of something deeper. Even when it isn’t linked to sleep apnea, snoring means the airway is vibrating and partly blocked, which prevents truly restful, high-quality sleep. In many cases, snoring is connected to obstructive sleep apnea (OSA), a condition that can have serious effects on health and well-being.
OSA happens when the airway becomes too narrow—or even closes—while someone is sleeping. This causes breathing to stop and restart throughout the night, often without the person realizing it. These repeated interruptions fragment restorative rest and cause drops in blood oxygen (hypoxemia). They also activate the sympathetic nervous system, increase oxidative stress, and promote systemic inflammation—processes that contribute to cardiovascular and metabolic risk (Heffernan et al.). As respiratory physiologist Roger L. Price explains, chronic over-breathing and low CO₂ can further destabilize these systems by altering blood pH and oxygen release (Price).
As sleep scientist Matthew Walker writes,
“Sleep is the Swiss Army knife of health. When sleep is deficient, there is sickness and disease. When sleep is abundant, there is vitality and health”
(Why We Sleep 7)
The Role of Tongue Posture and Breathing Patterns
Ideally, the middle and back of the tongue rest gently against the palate, creating a natural seal that keeps the lips closed during sleep. This posture helps stabilize the airway even when throat muscles relax in deep or REM sleep. When tongue posture is weak or effortful, the mouth often falls open. This can lead to mouth breathing, airway collapse, and—in some cases—sleep apnea (Guilleminault et al.).
Breathing Drive and CO₂ Sensitivity
Breathing rhythm is governed primarily by the brain’s CO₂-sensing chemoreceptors, which detect small rises in carbon dioxide and adjust ventilation accordingly. Scientists now understand that CO₂—not oxygen—is what primarily drives breathing (Eugenín and Richerson). People with heightened CO₂ sensitivity tend to breathe faster, while those with lower sensitivity breathe more slowly.
Over-Breathing and Blood Chemistry
Chronic mouth breathing or over-breathing can lower CO₂ levels, shifting blood chemistry toward respiratory alkalosis. This can temporarily reduce ionized calcium and potassium levels, sometimes leading to muscle cramps or fatigue. These effects are uncommon but physiologically valid, as described by Roger L. Price in his discussion of dysfunctional breathing and CO₂ regulation (Price).
The Bohr Effect—Why Slow Breathing Feels Efficient
Slightly higher CO₂ and lower pH improve oxygen delivery to tissues through the Bohr effect—a rightward shift of the oxyhemoglobin dissociation curve. This explanation aligns with Price’s view that normalizing CO₂ through nasal breathing may enhance oxygen-release efficiency (Price).
Ventilatory Control Instability (“Loop Gain”)
People with high “loop gain” have an overly sensitive ventilatory feedback system—each small fluctuation in CO₂ triggers a large corrective breath, producing unstable respiration. Research describes loop gain as one of four major OSA traits, alongside airway anatomy, arousal threshold, and muscle responsiveness (Deacon-Diaz and Malhotra).
How Myofunctional Therapy Helps
Myofunctional therapy strengthens the mouth and facial muscles so they maintain healthy posture during both sleep and wakefulness. Controlled studies show that it reduces apnea severity by roughly 50% in adults and 62% in children (Camacho et al.). A randomized controlled trial also found that four months of didgeridoo training—another form of upper-airway muscle exercise—significantly reduced daytime sleepiness and apnea–hypopnea index compared with controls (Puhan et al.). In my myofunctional therapy sessions, I incorporate targeted exercises that mimic the circular-breathing patterns used in didgeridoo playing to strengthen the airway-dilating muscles that keep the throat open during sleep.
Breathing-retraining methods such as Buteyko breathing are designed to increase CO₂ tolerance and address ventilatory instability in OSA phenotypes (McKeown et al.). In other words, these techniques can help stabilize nighttime airflow. When combined, these approaches lessen the suction that collapses the throat and encourage calm, nasal breathing through the night.
Children vs. Adults
OSA affects roughly 1–4% of children (Piotto et al.). Myofunctional therapy appears especially effective in younger patients because their facial bones and soft tissues are still growing. This aligns with the Functional Matrix Hypothesis (Moss and Rankow), which proposes that bones adapt to the functional demands of the muscles, teeth, and surrounding oral and facial tissues. In adults, therapy improves muscle coordination and habits but produces less skeletal change—a nuance consistent with pediatric airway research (Guilleminault et al.).
Quality of Life and Cognition
Studies show that untreated OSA reduces quality of life (Bjornsdottir et al.) and is associated with deficits in attention and memory (Wang et al.).
Restorative Sleep and Hormonal Balance
Sleep fragmentation from OSA disrupts endocrine and metabolic regulation. Reviews link poor sleep to altered cortisol, ghrelin, leptin, and insulin sensitivity (Ruchała et al.; Saeed et al., Song et al.). These hormonal shifts can increase appetite, reduce satiety, and promote abdominal fat accumulation, which in turn worsens airway obstruction and metabolic health. It is well established that chronic sleep disruption also contributes to insulin resistance, increasing the long-term risk of metabolic syndrome and type 2 diabetes.
works cited:
Bjornsdottir, Erla, et al. “Quality of Life among Untreated Obstructive Sleep Apnea Patients Compared to the General Population.” Sleep & Breathing, vol. 18, no. 3, 2014, pp. 649–656.
Camacho, Macario, et al. “Myofunctional Therapy to Treat Obstructive Sleep Apnea: A Systematic Review and Meta-Analysis.” Sleep, vol. 38, no. 5, 2015, pp. 669–675.
Deacon-Diaz, Naomi, and Atul Malhotra. “Inherent vs. Induced Loop Gain Abnormalities in Obstructive Sleep Apnea.” Frontiers in Neurology, vol. 9, 2018, article 896. https://doi.org/10.3389/fneur.2018.00896.
Eugenín, Jaime, and George B. Richerson. “Editorial: Alternative and Expanding Views on Central Respiratory Chemoreception in Health and Disease.” Frontiers in Physiology, vol. 15, 2024, article 1403768. https://doi.org/10.3389/fphys.2024.1403768.
Guilleminault, Christian, et al. “A Frequent Phenotype for Pediatric Sleep Apnea: Short Lingual Frenulum.” Sleep, vol. 39, no. 6, 2016, pp. 1169–1176.
Heffernan, Aidan J., et al. “Metabolic Crossroads: Interactions between Obstructive Sleep Apnea and Metabolic Syndrome.” International Journal of Molecular Sciences, vol. 25, 2024, p. 8721.
McKeown, Patrick, Carlos O’Connor-Reina, and Guillermo Plaza. “Breathing Re-Education and Phenotypes of Sleep Apnea: A Review.” Journal of Clinical Medicine, vol. 10, no. 3, 2021, article 471.
Moss, Melvin L., and Robin M. Rankow. “The Role of the Functional Matrix in Mandibular Growth.” American Journal of Orthodontics, vol. 54, no. 4, 1968, pp. 338–362.
Piotto, Marta, et al. “Pediatric Sleep Respiratory Disorders: A Narrative Review of Epidemiology and Risk Factors.” Children, vol. 10, no. 6, 2023, article 955. MDPI, https://doi.org/10.3390/children10060955.
Price, Roger L. Sleep Apnoea and Dysfunctional Breathing: The Link Missed by the Sleep Study Industry. AOMT White Paper, 2015.
Puhan, Milo A., et al. “Didgeridoo Playing as Alternative Treatment for Obstructive Sleep Apnoea Syndrome: Randomised Controlled Trial.” BMJ, vol. 332, no. 7536, 2006, pp. 266–270. https://doi.org/10.1136/bmj.38705.470590.55.
Ruchała, Marek, et al. “Obstructive Sleep Apnea and Hormones – A Novel Insight.” Archives of Medical Science, vol. 13, no. 4, 2016, pp. 875–884. PMCID: PMC5507108.
Saeed, Sadaf, and Tanya M. Connolly. “Sleep Loss and Endocrine Regulation.” Frontiers in Endocrinology, vol. 10, 2019, article 703. https://doi.org/10.3389/fendo.2019.00703.
Song, Sun Ok, et al. “Metabolic Consequences of Obstructive Sleep Apnea Especially Pertaining to Diabetes Mellitus and Insulin Sensitivity.” Diabetes & Metabolism Journal, vol. 43, no. 2, 2019, pp. 144–151. PMCID: PMC6470104.
Walker, Matthew P. Why We Sleep: Unlocking the Power of Sleep and Dreams. Scribner, 2017.
Wang, Ying, et al. “Effects of Obstructive Sleep Apnea on Cognition: An Analysis of Electroencephalography Microstates and Alpha Peak Frequency.” CNS Neuroscience & Therapeutics, vol. 31, no. 8, 2025, e70553. https://doi.org/10.1111/cns.70553.