You’re Tired, Unfocused, and Told It’s Just Stress. It Might Be Your Airway. What Adults in Northridge Need to Know About Sleep Apnea and Sleep-Disordered Breathing
You sleep eight hours. You wake up exhausted. You’ve been told it’s anxiety, or burnout, or you need to exercise more. You’ve tried melatonin, magnesium, and every sleep hygiene hack on the internet.
Nobody has asked whether your airway closes during the night.
Sleep apnea and sleep-disordered breathing (SDB) in adults are vastly underdiagnosed — especially in people who don’t fit the classic picture (male, obese, obvious loud snoring). Women are significantly underdiagnosed. Thin adults are significantly underdiagnosed. People who feel they sleep “fine” are often the most surprised by a sleep study result.
The consequences are not just fatigue. They include cardiovascular disease, insulin resistance, cognitive decline, depression, and impaired quality of life at a level that rivals most chronic conditions. And the structural driver — a jaw that grew too narrow, a tongue that has nowhere to rest, an airway that collapses under pressure — is often addressable.
What Obstructive Sleep Apnea (OSA) Does to an Adult Body
During an apnea event, the soft tissue of the airway collapses against itself, cutting off airflow for 10 seconds to well over a minute. The body detects the oxygen drop, triggers an arousal response, and the airway reopens. The person rarely fully wakes up, but the brain does — briefly — dozens or hundreds of times per night.
The downstream effects:
- Fragmented sleep architecture: The brain cannot complete the deep slow-wave and REM cycles needed for memory consolidation, emotional regulation, immune function, and metabolic repair. Even 8 hours of apneic sleep produces the cognitive equivalent of severe sleep deprivation.
- Hypoxic stress: Intermittent oxygen drops accelerate oxidative stress, systemic inflammation, and cardiovascular damage. The heart works harder during apnea events. Blood pressure spikes, repeatedly, throughout the night.
- Hormone disruption: Growth hormone is released primarily during deep sleep — OSA suppresses it. Cortisol regulation is impaired. Insulin sensitivity decreases. Weight gain and OSA form a feedback loop.
- Prefrontal cortex impairment: The part of the brain responsible for executive function, focus, emotional regulation, and decision-making is disproportionately sensitive to sleep fragmentation. Adults with undiagnosed OSA often describe this as brain fog, mood issues, and an inability to concentrate that feels like adult-onset ADHD.
The Symptoms Most Adults Attribute to Something Else
Patients with undiagnosed sleep apnea commonly report:
- Waking tired no matter how long they slept
- Headaches in the morning
- Difficulty concentrating — brain fog
- Irritability, mood swings, depression, or anxiety that does not fully respond to treatment
- Frequent waking during the night to use the bathroom (nocturia — a less-known OSA symptom)
- Acid reflux at night
- A partner reporting snoring, gasping, or periods of silence during sleep
- Waking with a dry mouth or sore throat
- Grinding or clenching teeth (bruxism) — often an airway-protective response
- Jaw tension or TMJ pain
If bruxism is on that list: this is particularly important. Teeth grinding at night is frequently a consequence of sleep-disordered breathing, not a standalone condition. The jaw clench is the body’s attempt to keep the airway open by activating jaw muscles that support tongue position. Treating the grinding with a night guard without treating the airway is like treating the smoke alarm without addressing the fire.
Why the Jaw Is the Root of the Problem
James Nestor’s book Breath — which became a cultural phenomenon and was featured on the Joe Rogan Experience podcast (#1506) — made a compelling case for something orthodontists who work in this space have understood for years: the modern human jaw is too narrow, and it is driving an epidemic of breathing problems.
Nestor documented how processed food diets, soft food during childhood development, and changes in breastfeeding have produced a population with narrower jaws and palates than our recent ancestors. A narrower jaw means a narrower nasal cavity (the upper jaw forms the floor of the nose). It means less room for the tongue to rest on the palate at night. It means a higher probability of airway collapse.
He is not alone in this. Oral anthropologist Robert Corruccini documented significant jaw narrowing in industrialized populations compared to their pre-industrial counterparts. Stanford sleep specialist Christian Guilleminault argued throughout his career that craniofacial anatomy — specifically jaw structure — is the primary driver of most sleep-disordered breathing, and that treating the anatomy is the only lasting solution.
The implications for adults are significant. Most people know that braces and Invisalign move teeth. Far fewer know that jaw position and width are orthodontic variables that can be addressed in adults — and that doing so can meaningfully change the airway space available during sleep.
Adult Airway Orthodontics: What Is Actually Possible
Dr. Yoram Kohanzadeh — the first and only certified airway orthodontist in Southern California, practicing in Northridge and Newbury Park — evaluates adult patients as full-system cases: jaw width, jaw position, tongue posture, bite, nasal breathing, and sleep symptoms together.
For adults with relevant anatomy, options include:
- Mandibular advancement: Moving the lower jaw forward increases tongue space and reduces the tendency for airway collapse. In adults whose lower jaw did not develop forward adequately, this is a foundational correction.
- Maxillary expansion in adults: Traditionally considered impossible in adults because the palate fuses. That assumption is now challenged. Minimally invasive palate expansion (MARPE — micro-implant-assisted rapid palate expander) can open the midpalatal suture in adults, widening the nasal passage and increasing airway volume without surgery. Not every adult is a candidate; evaluation is required.
- Orthodontic treatment without extractions: The conventional approach of extracting premolars to create room for alignment makes the jaw smaller, not larger — and a smaller jaw is a narrower airway. Airway-focused orthodontics explicitly avoids this approach. Invisalign and braces used in an expansion-first philosophy align teeth while preserving or improving jaw width.
- Oral appliance therapy coordination: For adults with confirmed OSA who need an alternative to CPAP, custom mandibular advancement devices (MADs) are evidence-based — the American Academy of Sleep Medicine endorses them for mild to moderate OSA, and for severe OSA in CPAP-intolerant patients. An orthodontist with airway training is uniquely positioned to properly fit these devices and monitor tooth movement.
The Non-Extraction Philosophy — Why It Matters for Adults
This is worth dwelling on because it directly affects thousands of adults who had orthodontic treatment as teenagers.
For decades, the most common orthodontic approach for crowded teeth was to extract two or four premolars — reducing the number of teeth to create room for alignment. This produces a cosmetically acceptable result. But it does not address the underlying cause of crowding (the jaw is too narrow for the teeth), and it leaves the patient with a smaller, narrower jaw than they started with.
Adults who had extraction-based orthodontics as teenagers and now have TMJ symptoms, chronic facial tension, sleep problems, or airway issues may be experiencing downstream consequences of that original narrowing. This is a real clinical pattern.
At Smile By Dr. K, the approach is to expand toward the natural, fully-developed jaw width — creating room through arch development rather than extraction. In adults presenting for braces or Invisalign, this approach simultaneously improves aesthetics and supports airway health.
Sleep Apnea Is a Medical Diagnosis — Airway Orthodontics Is Part of the Care Team
An important clarification: Dr. K is not a sleep physician. He does not diagnose obstructive sleep apnea or prescribe CPAP. The medical standard of care for OSA involves a sleep study (polysomnogram or home sleep test), diagnosis by a physician or sleep specialist, and a treatment plan coordinated across specialties.
What airway orthodontics provides is the structural piece of that puzzle. Treating soft tissue symptoms (CPAP, positional therapy) without addressing the underlying jaw anatomy is addressing the symptom, not the cause. Many patients use both approaches — and the most advanced care involves orthodontists and sleep physicians working together.
If you suspect you have sleep apnea, the right first step is a sleep study. If you want to understand whether your jaw anatomy is contributing to your breathing symptoms — and what, if anything, can be done about it — that is exactly the evaluation Dr. K provides.
Take the First Step
If you are tired, foggy, grinding your teeth at night, or sleeping next to someone who snores and gasps, don’t accept “that’s just how you sleep” as an answer. The airway is worth looking at.
👉 Take our free 60-second adult airway screening →
Or call to schedule an in-person consultation:
Northridge: (818) 341-5150
Newbury Park: (805) 498-7785
Serving adults in Northridge, Chatsworth, Newbury Park, Thousand Oaks, West LA, and across the San Fernando Valley.
Dr. Yoram Kohanzadeh is the first and only certified airway orthodontist in Southern California. This post is educational and does not constitute medical advice. Sleep apnea is a medical condition requiring physician diagnosis and management.