Sleep Breathing Disorders
- Alex Kelly
- May 29
- 5 min read
Updated: Jun 8
Some helpful and related resources:
This is not medical advice.
What is a Sleep Breathing Disorder?
A sleep breathing disorder Is a large scope referring to a variety of sleep-related conditions that cause abnormal breathing patterns during sleep. These can range from snoring/mouth-breathing to obstructive sleep apnea.
Sleep Breathing Disorder (possible) Symptoms
ADD/ADHD
Bed Wetting
Delayed Speech
Overweight/Obesity
Learning Difficulties
Vertigo/Clumsiness
Restless Legs
Aggression/Defiance
Teeth Grinding
Snoring
Mouth Breathing
Daytime Sleepiness
Nightmares/Night Terrors
Allergies/Asthma
Anxiety
Frequent Illness
Stunted Growth
Crooked Teeth
Swollen Tonsils/Adenoids
Forward Head Posture
Recessed/Stunted Chin
Dark Circles Under the Eyes
The Importance of Nasal Breathing
Our nose is designed to prepare the air for the lungs. The nose warms, filters, accelerates, humidifies, and cleans the air, which leads to efficient oxygen exchange in the lungs. The mouth does none of this, and actually reduces oxygen absorption (1.4).
Nasal breathing also produces Nitric Oxide (1.1), an anti-inflammatory molecule that aids in immune function. Where as mouth breathing decreases immunity and causes inflammation throughout the body (1.2, 1.3).
Think about hyperventilation…what happens when you hyperventilate? You rapidly breathe through your mouth and do not receive the proper exchange of oxygen, which results in a negative effect all over. When you are mouth breathing (day or night) the body is sent into a constant fight or flight mode, which puts your adrenal glands on max 24/7.
Sleep Disorders and ADHD
It is estimated 50-70% of children with ADHD have some form of sleep disturbance (AAP, National Resource Center on ADHD). Oral dysfunction, underdeveloped jaws, and a compromised airway prevents the proper sleep needed for glymphatic drainage and nitric oxide production.
The AAPD recognizes that children with untreated obstructive sleep apnea may be inappropriately diagnosed with ADHD. When children can’t breathe, they can’t sleep (properly). This puts them in a constant state of sleep deprivation. The brain stimulates the body in order to keep it awake - hence the ADHD symptoms.

So what causes sleep breathing disorders?
There are a myriad of reasons a compromised airway/sleep breathing disorder may form, and many go hand-in-hand:
high narrow palate caused by
thumb sucking
soft food diet
prolonged bottle use
prolonged paci use
prolonged sippy cup use
weak tongue
enlarged tonsils/adenoids
low tongue posture
oral ties
to name a few
Mouth Breathing: Primate Study
Two fascinating studies by Dr. Egil Harvold, published in the American Journal of Orthodontics and Dentofacial Orthopedics, observed young monkeys with plugged noses forcing them to adapt by mouth breathing.
This study found that ALL the monkeys who mouth breathed developed crooked teeth and poor jaws & facial development. Specifically, mouth breathing led to “a lowering of the chin, a steeper mandibular plane angle, and an increase in the gonial angle.” Their faces become long and narrow, with the jaw prominent and the chin recessed.

Weston A. Price Foundation
Mouth Breathing: Interventions
Treatment will vary depending on age and severity. If caught early during childhood, the treatment is often much more simple. Early correction for optimal child development will typically involve a TEAM approach of an airway centered & trained dentist, an ENT specialist, speech/myo therapist, body worker, and possibly orthodontist.
Browse a list of providers by state here.
MORE RESOURCES:
Pediatric Sleep & Breathing Case Studies: The Breathe Institute with Dr. Soroush Zaghi
PODCASTS
Dr. Leonard Sax | The Over Diagnosis of ADD Children & How Parents Can Advocate
A Mother's Journey: When an ADHD Misdiagnosis is Actually a Sleep Breathing Disorder
The Co-Morbidities of Mouth Breathing: ADD/ADHD | Dr. Ben Miraglia
The Co-Morbidities of Mouth Breathing: Asthma | Dr. Ben Miraglia
The Co-Morbidities of Mouth Breathing: Bed Wetting | Dr. Miraglia
Epigenetic Jaw Orthopedics for Airway & Facial Development | Dr Felix Liao
TONGUE TIE RESOURCES & RESEARCH:
Lingual Frenuloplasty (tongue tie) with Myofunctional Therapy
Tethered Oral Ties: The Assessment and Diagnosis of the Tongue and Upper Lip Ties in Breastfeeding
Eleven out of twelve patients (91.6%) reported clinical improvement in the use of their voice after functional frenuloplasty
Tongue surgeries for pediatric obstructive sleep apnea: a systematic review and meta-analysis
Results: Tongue–lip adhesion and tongue repositioning can improve apnea/hypopnoea index and oxygenation parameters in children with Pierre Robin sequence and obstructive sleep apnea.
Speech Outcomes of Frenectomy for Tongue-Tie Release: A Systematic Review and Meta-Analysis
Overall, frenectomy for tongue-tie was associated with an improvement in speech articulation
Frenectomy for the Correction of Ankyloglossia: A Review of Clinical Effectiveness and Guidelines
TONGUE TIE BOOKS
Tongue Tied by Dr. Richard Baxter
MORE RESOURCES
Long-term implications of untreated tongue ties by Dr. Soroush Zaghi
Sources
1.1 Lundberg JO, Settergren G, Gelinder S, Lundberg JM, Alving K, Weitzberg E. Inhalation of nasally derived nitric oxide modulates pulmonary function in humans. Acta Physiol Scand. 1996 Dec;158(4):343-7. doi: 10.1046/j.1365-201X.1996.557321000.x. PMID: 8971255.
1.2 Edwards DA, Chung KF. Mouth breathing, dry air, and low water permeation promote inflammation, and activate neural pathways, by osmotic stresses acting on airway lining mucus. QRB Discov. 2023 Feb 14;4:e3. doi: 10.1017/qrd.2023.1. PMID: 37529032; PMCID: PMC10392678.
1.4 Mouth Breathing: Understanding the Pathophysiology of an oral habit and its consequences Ramirez-Yanez German O., DDS, MDSc, MSc, PhD
2.1 Lörinczi F, Vanderka M, Lörincziová D, Kushkestani M. Nose vs. mouth breathing- acute effect of different breathing regimens on muscular endurance. BMC Sports Sci Med Rehabil. 2024 Feb 9;16(1):42. doi: 10.1186/s13102-024-00840-6. PMID: 38336799; PMCID: PMC10858538.
2.2 Neiva PD, Kirkwood RN, Mendes PL, Zabjek K, Becker HG, Mathur S. Postural disorders in mouth breathing children: a systematic review. Braz J Phys Ther. 2018 Jan-Feb;22(1):7-19. doi: 10.1016/j.bjpt.2017.06.011. Epub 2017 Jul 5. PMID: 28709588; PMCID: PMC5816083.
3 Oeverland B, Akre H, Skatvedt O. Oral breathing in patients with sleep-related breathing disorders. Acta Otolaryngol. 2002 Sep;122(6):651-4. doi: 10.1080/000164802320396349. PMID: 12403129.
4 Caruso S, Nota A, Darvizeh A, Severino M, Gatto R, Tecco S. Poor oral habits and malocclusions after usage of orthodontic pacifiers: an observational study on 3-5 years old children. BMC Pediatr. 2019 Aug 22;19(1):294. doi: 10.1186/s12887-019-1668-3. PMID: 31438904; PMCID: PMC6706895.
5 Page DC. Breastfeeding is early functional jaw orthopedics (an introduction). Funct Orthod. 2001 Fall;18(3):24-7. PMID: 11799699.
6 Wagner Y, Heinrich-Weltzien R. Occlusal characteristics in 3-year-old children--results of a birth cohort study. BMC Oral Health. 2015 Aug 7;15:94. doi: 10.1186/s12903-015-0080-0. PMID: 26251128; PMCID: PMC4528377.
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