Nasal breathing offers several benefits over breathing through the mouth, and it's considered healthier for a number of reasons. Below are some of the key ones that are important to all of us, but it goes without saying there are plenty more.
The nose has over 30 important functions that enhance relaxation, cognitive function, and overall health wellbeing.
It’s not just about stress reduction or better sleep either. Nasal breathing impacts everything from cranio-facial development to athletic performance and public speaking. It slows down airflow to promote calmness and improves cognitive function and visual-spatial awareness compared to mouth breathing.
1. Filters and cleans the air
· Your nose is your first line of defence for respiratory health.
· The nose has tiny hair-like structures(cilia) and mucous membranes that help filter out dust, allergens, and pathogens, preventing them from entering your lungs.
· The nose houses immune cells that provide an extra layer of defense.
· It protects your airways by trapping harmful particles before they reach the lungs.
2. Humidifies and Warms the Air
· Air breathed in through the nose is humidified and warmed before it reaches your lungs, which is gentler on the respiratory system and prevents irritation that dry, cold air can cause.
3. Improves Oxygen Absorption
· Nasal breathing promotes the optimal functioning of the diaphragm, which helps with deeper, more efficient breaths. This enhances oxygen absorption and reduces the work your body has to do to take in air.
· It also maintains lung elasticity, ensuring optimal gas exchange and respiratory function.
4. Regulates Breathing Rate
· Breathing through the nose naturally slows down the breath rate and encourages more controlled, steady breathing. This can help lower stress levels and improve focus.
5. Increases Nitric Oxide Production
· Nasal breathing stimulates the production of nitric oxide, a molecule that helps with vasodilation (widening blood vessels), which can improve circulation and oxygen delivery to tissues.
6. Supports Better Posture and Diaphragm Use
· Breathing through the nose encourages diaphragmatic breathing (belly breathing), which is better for posture, spine alignment, and overall lung capacity.
7. Improves Sleep Quality
· Nasal breathing can reduce snoring and the likelihood of sleep apnea by keeping the airway more stable and preventing the collapse of the throat muscles.
· Breathing through your nose also promotes deeper, more restorative sleep. This has a beneficial knock-on effect for your overall wellbeing.
8. Enhances Lung Health
· Nasal breathing encourages deeper lung expansion and helps clear mucus from the lungs more effectively, supporting overall respiratory health.
9. Prevents Dry Mouth and Tooth Decay
· Breathing through the mouth can lead to dry mouth, which can cause bad breath, an increased risk of cavities, and other dental issues. Nasal breathing prevents this by keeping the mouth moist.
10. Reduces Anxiety and Stress
· Nasal breathing, especially when done slowly and deeply, activates the parasympathetic nervous system (the "rest and digest" mode), helping to lower cortisol levels and reduce feelings of stress and anxiety.
· Breathing through your mouth activates your fight or flight response, impacting both your sleep and cognitive function.
· Induces beneficial changes in brain wave activity and states of consciousness.
· Leverages the olfactory system’s connection to the brain for enhanced mental clarity.
In short, nasal breathing supports physical health, enhances the body's ability to absorb oxygen, promotes relaxation, and helps maintain good oral and respiratory hygiene. It’s one of those small habits with big long-term benefits. So start paying attention to your breathing habits today - your body and mind will thank you.
Want to learn more about the benefits of nasal breathing or start your breathing retraining? Get in touch