#Note/Permanent #Health #Habit Breathing through the nose, as opposed to mouth breathing, offers several health benefits, rooted in both physiological functions and overall well-being. 1. **Filtration and Humidification**: The nasal passages filter, warm, and humidify the air we breathe, which is crucial for lung health. This process helps to remove particulates and pathogens, reducing the risk of respiratory infections. 2. [**Nitric Oxide Production**](https://pubmed.ncbi.nlm.nih.gov/8971255/#:~:text=The%20vasodilator%20gas%20nitric%20oxide,inspiration%2C%20especially%20during%20nasal%20breathing.): Nasal breathing increases the production of nitric oxide, a vital molecule that plays a crucial role in our body's health. Nitric oxide enhances blood flow, boosts oxygen transportation in the body, and supports the immune system. 3. [**Improved Oxygenation**](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5466403/): Breathing through the nose can lead to better oxygenation of the body. The slower, more regulated flow of air increases CO2 levels in the blood, which in turn helps release oxygen from hemoglobin more efficiently. 4. **Dental and Oral Health**: Nasal breathing is beneficial for oral health. Mouth breathing can lead to dry mouth, increasing the risk of dental decay and gum disease. It can also [affect the development of facial structures in children](https://onlinelibrary.wiley.com/doi/abs/10.1002/lary.20991). 5. **Better Sleep Quality**: [Nasal breathing is linked to improved sleep quality](https://journals.sagepub.com/doi/abs/10.1016/S0194-5998(00)70147-1). It reduces the likelihood of [snoring and sleep apnea](https://www.scielo.br/j/bjorl/a/MdgJ9RSG93n9QkQPjtQcL6f/?lang=en), leading to a more restful and uninterrupted sleep. 6. **Calmness and Stress Reduction**: Breathing through the nose can activate the parasympathetic nervous system, promoting a state of calmness and reducing stress levels.