By Dr. Atousa
Take a breath right now. Don’t change anything about it. Just notice. Are you breathing through your nose or your mouth? Is your jaw clenched? Is your tongue pressed against the roof of your mouth, or is it sitting low and heavy behind your bottom teeth? Most people have never been asked these questions. And yet the answers shape everything from how deeply you sleep tonight to how clearly you think tomorrow morning.
Breathing is the one function you perform more than any other, roughly 20,000 times every 24 hours. It happens without thought, without effort, without a single conscious decision. And that’s precisely why it goes unexamined. We assume that if we’re breathing, we’re breathing well. That assumption is costing millions of people their energy, their sleep, and their health.
There is a real difference between breathing that sustains life and breathing that supports it. Nasal breathing, the kind your body was designed for, filters, warms, and humidifies air before it reaches the lungs. It stimulates nitric oxide production, a molecule essential to oxygen absorption, blood pressure regulation, and immune defense. It activates the parasympathetic nervous system and signals the body that it is safe to rest, recover, and repair.
Mouth breathing does none of this. It bypasses every filtration system your body has. It dries out oral tissues, shifts the pH of the mouth, and creates an environment where harmful bacteria thrive. Over time, chronic mouth breathing changes tongue posture, jaw development, and the architecture of the airway itself. In children, it alters how the face grows. In adults, it quietly degrades sleep, increases inflammation, and feeds a cascade of symptoms that rarely get traced back to how air enters the body.
This is the conversation Dr. Atousa is having with patients every day at Colorado Dental Wellness Center, and it’s one that almost nobody else is having with them.
Most providers don’t evaluate breathing patterns. A patient can visit their doctor, their allergist, their sleep specialist, and their dentist, and never once be asked whether they breathe through their nose or their mouth, whether their tongue rests where it should, or whether their jaw is supporting or restricting their airway. These are not obscure details. They are foundational. And they are visible in the mouth at every visit.
Dr. Atousa looks for them. She evaluates palate width, tongue posture, lip seal, and soft tissue tone. She reads the wear patterns on teeth that reveal nighttime clenching, the body’s attempt to push the jaw forward and keep the airway open. She assesses whether the jaw developed in a way that supports airflow or narrowed over time, leaving the airway compromised.
These findings connect directly to the headaches a patient can’t explain, the fatigue that never lifts, the brain fog that rolls in every afternoon, the snoring their partner has learned to ignore, and the anxiety that may not be psychological at all. When breathing is dysfunctional, the body compensates in ways that touch every system. The mouth is where the evidence lives.
The encouraging part is that once a breathing pattern is identified and the structural picture is understood, the trajectory can shift. Some patients benefit from airway-supportive appliances. Some need myofunctional guidance to retrain tongue posture and nasal breathing. Some need collaboration with other providers. For many, the most powerful shift is simply understanding, for the first time, that the way they’ve been breathing has been quietly working against them.
You don’t need to be gasping for air to have a breathing problem. You don’t need a diagnosis to start paying attention. You just need someone willing to look at the structures that shape every single breath you take and tell you what they see.
