Unlocking the Immune Power of Nasal Breathing

# Unlocking the Immune Power of Nasal Breathing The immune system is our body’s natural defence mechanism, working tirelessly to protect us from pathogens and maintain our health. However, one aspect of immune health that is often overlooked is the role of nasal breathing. Unlike mouth breathing, which bypasses the body’s natural filters, breathing through the nose offers numerous benefits that help shield us from viruses, bacteria, and environmental pollutants. Breathing specialist Patrick McKeown emphasises, “The nose is the first point of defence for all the air that enters the body,” underscoring the critical role the nose plays in immune protection. ## Nasal Breathing as a First Line of Defence When we breathe through our nose, the air undergoes a natural filtration process before it reaches the lungs. The nose is equipped with tiny hair-like structures called cilia and a mucus lining that traps particles, pathogens, and dust. As McKeown points out, “There is so much going on in the nose...it’s not natural to mouth breathe. If it was, there would be structures in the mouth that contribute to breathing, but there aren’t.” In addition to acting as a filter, the nose also warms and humidifies the air. This process is critical, as cold or dry air can irritate the respiratory tract and contribute to conditions like bronchoconstriction. By ensuring that the air is conditioned before reaching the lungs, nasal breathing helps to reduce respiratory irritation and protect the delicate tissues of the respiratory system. ## The Power of Nitric Oxide in Nasal Breathing Nasal breathing also produces nitric oxide, a powerful molecule with antimicrobial properties. Nitric oxide not only helps to open up airways by dilating blood vessels but also plays a role in sterilising the air we breathe. As McKeown explains, “When we breathe through our nose, we pick up nitric oxide, which helps to kill pathogens, opens the airways, and improves oxygenation in the lungs.” This means that nasal breathing can reduce the chances of respiratory infections, especially in environments where air quality is compromised. In contrast, mouth breathing bypasses these defences entirely. The mouth lacks the filtering structures of the nose, allowing unfiltered air, pollutants, and pathogens to enter the respiratory system more directly. This can increase the risk of infections and even trigger inflammatory responses, which are often associated with allergic reactions and respiratory issues. ## Supporting Immune Health with Nasal Breathing Adopting nasal breathing can significantly enhance one’s immune resilience. McKeown emphasises the need for people to develop nasal breathing habits, especially during sleep, when most people unconsciously shift to mouth breathing. “Many people don’t realise that they mouth-breathe during sleep, which can compromise their health. Taping the mouth gently during sleep can encourage nasal breathing,” he suggests. Additionally, being mindful of breathing patterns during the day can help reinforce nasal breathing. Breathing exercises that focus on slow, gentle nasal breaths can improve respiratory efficiency and encourage the body to adopt nasal breathing naturally. ## Conclusion Nasal breathing provides a natural and highly effective barrier against pathogens, filtering, humidifying, and sterilising the air before it reaches the lungs. By adopting nasal breathing, individuals can take a simple but powerful step towards supporting their immune health and reducing their risk of respiratory issues. *To learn more about how airway-centric orthodontics can help address this public health issue, visit the [Mewing YouTube channel](https://www.youtube.com/@Orthotropics) for informative content.* *You can also contribute to the cause and access valuable resources by subscribing to the [Mewing App by Mike Mew](https://play.google.com/store/apps/details?id=com.orthotropics.mewing&hl=en_IN). Join the movement and be part of the solution to improving airway health worldwide.*

Unlocking the Immune Power of Nasal Breathing

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Dr. Mike Mew

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