The Power of Nasal Breathing: How It Improves Oral & Overall Health

Unlock the Health Benefits of Nasal Breathing: A Path to Better Oral Hygiene and Overall Wellness

Woman practicing mindful nasal breathing with eyes closed and hands on chest in a peaceful forest setting.

Breathing is automatic—but how you breathe matters more than most people realize. Studies estimate that nearly 30% of adults breathe through their mouths, often without knowing it. (1) This seemingly harmless habit is linked to a host of health problems, from tooth decay and gum disease to sleep disorders, high blood pressure, and fatigue.

In contrast, nasal breathing is a powerful, underutilized tool for enhancing both oral and systemic health. It naturally:

  • Keeps the mouth hydrated and teeth protected

  • Supports a balanced oral microbiome

  • Increases nitric oxide (NO) production—a molecule that plays a vital role in oxygen delivery, immune defense, and cardiovascular health

If you're experiencing dry mouth, bad breath, frequent cavities, or disrupted sleep, chronic mouth breathing may be the hidden culprit. Fortunately, retraining your body to breathe through the nose can dramatically improve your health—starting today.

Breathing is an automatic process, but how you breathe—through the nose or mouth—has a profound impact on your oral and overall health.

The Science Behind Nasal Breathing and Nitric Oxide (NO)

Nitric oxide is a naturally produced gas in the nasal sinuses that is inhaled into the lungs. Its benefits extend far beyond respiration, positively affecting multiple physiological functions:

  • Enhances Oxygen Absorption – NO helps expand blood vessels, improving oxygen delivery throughout the body. (2) 

  • Antimicrobial Properties – NO reduces harmful oral bacteria, lowering the risk of gum disease and cavities. (3)

  • Anti-Inflammatory Effects – NO helps regulate inflammation, reducing the risk of chronic gum disease and oral infections. (4)

  • Supports Cardiovascular Health – NO improves circulation and promotes heart health.

By ensuring consistent nasal breathing, individuals can maximize nitric oxide production, which directly enhances both oral and systemic well-being.


The Hidden Dangers of Mouth Breathing

Chronic mouth breathing is more than just an inconvenient habit—it can contribute to a variety of oral and overall health problems, including (5,6):

  • Dry Mouth (Xerostomia): Mouth breathing reduces saliva production, allowing harmful bacteria to thrive, leading to cavities and bad breath. 

  • Gum Disease & Inflammation: A dry mouth increases plaque buildup, which heightens the risk of gingivitis and periodontitis.

  • Altered Oral Microbiome: An imbalance in oral bacteria can lead to bad breath, tooth decay, and more frequent infections.

  • Structural Changes in Facial Development: In children, persistent mouth breathing can lead to malocclusion (misaligned teeth), narrow dental arches, and even changes in facial structure.

  • High Blood Pressure (Hypertension): Mouth breathing reduces nitric oxide levels, which play a crucial role in relaxing blood vessels. Without enough NO, blood vessels remain constricted, increasing blood pressure and cardiovascular strain.

  • Sleep Apnea & Snoring: Chronic mouth breathing is linked to obstructive sleep apnea (OSA), which can lead to poor sleep quality, daytime fatigue, and increased heart disease risk.

  • Reduced Oxygen Absorption: Nasal breathing optimizes oxygen exchange, while mouth breathing can lead to shallow, inefficient breathing patterns that deprive the body of sufficient oxygen, contributing to fatigue and anxiety.

  • Increased Risk of Infections: The nasal passages act as a natural filter, trapping dust, allergens, and pathogens. Mouth breathing bypasses this filtration system, making individuals more susceptible to colds, flu, and respiratory infections.

  • Digestive Issues: Mouth breathing can lead to excessive air swallowing (aerophagia), causing bloating, acid reflux, and digestive discomfort.


Strategies to Promote Nasal Breathing and Improve Oral Health

The good news? You can retrain yourself to breathe through your nose and protect your oral health. Here are some effective strategies:

1. Address Nasal Congestion

Chronic nasal congestion forces people to breathe through their mouths. 

Try these remedies:

  • Saline nasal rinses

  • Allergy management (air purifiers, reducing allergens)

  • Breathing exercises to clear nasal passages

2. Myofunctional Therapy

This form of therapy strengthens the muscles of the face and tongue to promote proper breathing patterns. It is particularly useful for children to prevent long-term structural changes.


3. Breathing Techniques to Promote Nasal Breathing and Whole-Body Wellness

Breathing techniques can retrain your respiratory patterns, improve oxygen utilization, and promote calm, focused energy. Incorporating intentional breathing practices into your daily routine helps reinforce nasal breathing, enhance nitric oxide production, and support oral, respiratory, and systemic health.

Here are four powerful breathing techniques that promote nasal breathing and overall wellness:

Buteyko Breathing: A Foundation for Respiratory Health

Developed by Dr. Konstantin Buteyko in the 1950s, this technique is designed to reduce over-breathing and encourage slow, nasal breathing. It’s particularly beneficial for those with asthma, anxiety, or sleep-disordered breathing.

How It Works:
The core principle of Buteyko breathing is to slow your breath and balance oxygen and carbon dioxide levels. This leads to better oxygen absorption, reduced respiratory rate, and enhanced relaxation.

Key Benefits:

  • Reduces asthma and allergy symptoms

  • Improves sleep quality and reduces snoring

  • Promotes nasal breathing, reducing dry mouth and oral inflammation

  • Decreases anxiety and enhances mental clarity

How to Practice:

  1. Sit comfortably with a straight spine.

  2. Breathe slowly through your nose.

  3. After a normal exhale, gently hold your breath for a few seconds (Control Pause), then resume nasal breathing.

  4. Practice for 5–10 minutes daily.

Alternate Nostril Breathing (Nadi Shodhana): Balance & Clarity

A classic yogic practice, alternate nostril breathing helps calm the nervous system, promote nasal airway dominance, and balance the two hemispheres of the brain.

Key Benefits:

  • Enhances focus and cognitive performance

  • Reduces stress and anxiety

  • Supports sinus health and clear breathing

  • Encourages nasal breathing over mouth breathing

How to Practice:

  1. Sit comfortably and use your right thumb to close your right nostril.

  2. Inhale through the left nostril.

  3. Close the left nostril with your ring finger and release the right nostril.

  4. Exhale through the right nostril.

  5. Inhale through the right, then switch again.

  6. Continue alternating for 5 minutes.

Box Breathing: Calm the Nervous System

Used by athletes, first responders, and even Navy SEALs, box breathing (also known as square breathing) is a powerful tool for managing stress and promoting a state of calm focus.

Key Benefits:

  • Reduces anxiety and triggers the parasympathetic “rest and digest” response

  • Regulates breath control and heart rate

  • Helps break shallow or rapid breathing patterns

How to Practice:

  1. Inhale through your nose for a count of 4.

  2. Hold your breath for 4 counts.

  3. Exhale through your nose for 4 counts.

  4. Hold your breath again for 4 counts.

  5. Repeat the cycle for 4–6 minutes.

Breath of Fire (Kapalabhati): Energize and Detoxify

This dynamic breathing technique from yoga involves short, powerful nasal exhales and passive inhales. It energizes the body, stimulates the lymphatic system, and strengthens the diaphragm and abdominal muscles.

Key Benefits:

  • Boosts energy and mental alertness

  • Clears sinuses and strengthens nasal breathing patterns

  • Stimulates digestion and detoxification

  • Promotes resilience to stress

How to Practice:

  1. Sit tall and inhale gently through the nose.

  2. Begin short, forceful exhales through the nose (like small abdominal pumps), letting the inhales come naturally.

  3. Start slowly (1–2 breaths/second) and build up to 30–60 seconds.

  4. Stop if you feel dizzy or lightheaded.

⚠️ Note: Breath of Fire is not recommended during pregnancy, immediately after eating, or for individuals with high blood pressure unless advised by a practitioner.

4. Airway Assessments

If you experience chronic nasal blockages, we can refer to a specialist for an airway assessment. This may be due to conditions like a deviated septum or enlarged adenoids.

5. Mouth Taping at Night

Using gentle mouth tape while sleeping encourages nasal breathing, reducing dry mouth, snoring, and the risk of cavities.

6. External Nasal Strips

These strips lift and open the nostrils, improving airflow. They are particularly beneficial for those dealing with mild congestion, sleep apnea, or exercise-induced mouth breathing.

7. Acupuncture for Better Breathing: Enhance Respiratory Health Naturally

Acupuncture has been used for centuries to optimize breathing and respiratory function. By stimulating key points on the body, acupuncture helps regulate the nervous system, reduce inflammation, and improve airflow.

How Acupuncture Supports Breathing Optimization

  • Reduces Nasal Congestion – Opens nasal passages by decreasing inflammation and improving sinus drainage.

  • Enhances Lung Function – Stimulates meridian points related to lung health, improving oxygen exchange.

  • Regulates the Nervous System – Encourages parasympathetic activation, supporting deep, controlled breathing.

  • Improves Oxygen Circulation – Enhances blood flow and oxygen delivery for increased energy.

  • Supports Sleep & Reduces Snoring – Helps manage sleep-disordered breathing, including sleep apnea.

For those struggling with chronic mouth breathing, acupuncture can be an effective therapy to promote nasal breathing and overall respiratory health.


Frequently Asked Questions (FAQs)

How do I know if I’m a mouth breather?

Common signs include dry mouth in the morning, bad breath, frequent sore throats, and waking up tired. Children may also exhibit crooked teeth or facial structure changes. (7)

Can nasal breathing help prevent cavities?

Yes! Nasal breathing helps maintain saliva production, which naturally washes away harmful bacteria, reducing the risk of cavities.

Is mouth taping safe for everyone?

Mouth taping can be safe if done correctly, but it’s essential to ensure nasal passages are clear before attempting it. 


Take Control of Your Oral & Systemic Health with DSHM

At Denver Sports and Holistic Medicine (DSHM), we prioritize whole-body health, and that starts with proper breathing. If you struggle with mouth breathing, sleep disturbances, or oral health concerns, we can help you find the best solutions to improve your breathing, sleep quality, and overall wellness.

In collaboration with our friends at Colorado Biodental, leaders in biological dental care, who provide airway assessments and treatments that compliment our holistic therapies at DSHM. Together, we aim to bring you a comprehensive approach to wellness. By combining holistic health and advanced dental expertise, we’re dedicated to supporting your overall well-being from the inside out.


Ready to optimize your health? 

Request a free consultation with Dr. Martina Sturm at Denver Sports and Holistic Medicine to learn more about how you can improve your breathing and overall health



Resources

  1. Mouth Breathing: What It Is, Complications & Treatments

  2. Role of Nitric Oxide Carried by Hemoglobin in Cardiovascular Physiology: Developments on a Three-Gas Respiratory Cycle

  3. The potential of nitric oxide releasing therapies as antimicrobial agents - PMC

  4. How Periodontal Disease and Presence of Nitric Oxide Reducing Oral Bacteria Can Affect Blood Pressure - PMC

  5. Impact of airway dysfunction on dental health - PMC

  6. Prevalence of periodontal disease, its association with systemic diseases and prevention - PMC

  7. Mouth breathing and orthodontic intervention: Does the evidence support keeping our mouths shut? - ScienceDirect