The Samahita Blog

Breathe Through Your Nose

Every Centered Yoga retreat or training involves set times for Q&A periods with Paul Dallaghan. During this past year’s 2017/18 Christmas and New Year Retreat he was asked about why such a focus on nose breathing is emphasized. Here are the highlights of Paul’s response:

Six reasons (with huge pay-offs) to breathe through your nose

In yoga classes we are encouraged to keep our mouths closed, breathing only through the nose. Yet this is highly advised off the mat as well, and for several good reasons. The evolution of our systems to partially separate the passage of food and air is sophisticated and well studied. It distinguishes us from other primates in clear anatomical ways, and yet, Paul explained, it invites the tendency for people to lose track of the best, most efficient way to breathe – through the nose. Let’s explore that further, listing Paul’s point here:

1. The nose serves to filter the air that we breathe. Lined with millions of tiny cilia and mucous membranes, it is designed to catch bacteria, dirt and debris that would otherwise travel into the lungs.

2. Air temperature and humidity is also regulated by the nose. If you breathe in excessively cold and dry air, you can actually shock your system. “The internal shape of the nose is designed to make the air swirl—that moistens it and regulates the temperature.”

3. Breathing through the mouth is inherently shallow, almost sharp and thus has more of an aggressive effect on the nervous system. Nasal breathing triggers greater use of your diaphragm and thus invites a deeper breath and more oxygen into the system.

4. Even more amazing, and rarely considered, is that air drawn in the nose also passes through deep and wide chambers (sinuses) across the face and into the skull—two of which straddle the pituitary gland. This is quite possibly the closest you can get to “massaging” your pituitary, a major gland involved in the release of so many of the body’s functioning hormones affecting stress management, reproduction, and much more. These sinuses are highly charged membranous environments. Mouth breathing completely bypasses such an involvement and will leave you feeling heavier, less clear, more sluggish. The nose breather is calmer and more centered.

5. Cellular respiration, the metabolic process by which your cells produce energy using the oxygen you just breathed in, is directly impacted by the quality of your breath and to some degree by the quantity (oxygen volume) you have been able to breathe in. Therefore your breath is intimately linked to energy production and how you spend that energy. The cells of your heart, eyes and prefrontal cortex area of your brain have the highest level of mitochondria—as Paul termed “little batteries”, though in reality literally ancient bacteria that basically power the human body. Each of these little batteries is pumping out units of energy, or ATP. A single cortical neuron (brain nerve cell) utilizes an unbelievable approximate 4.7 billion ATPs per second in a resting human brain. In other words, you have some expensive machinery to run and so need to fuel it optimally. To breathe poorly (literally), which is through your mouth, is not only an energy loss but poorer performance for your brain, leading to an unfocused and less effective mind, and worse, because your mental energy is dispersed and diluted it leads to continued poorer breathing. “Mouth breathing is an expensive practice.”

6. In the Ayurvedic sense, shallow and inefficient mouth breathing causes your vata dosha to go off. You become prone to headaches, and your immune system becomes compromised, which opens you to a greater possibility of illness.

Summing it all up, Paul said:

“So mouth breathing is a lot shorter, sharper, and relies on the diaphragm less. It’s not filtering, not changing the temperature, not affecting the humidity. It’s compromising my immune system and switching on my sympathetic. It’s more energy wasting.

“You lose more heat, about 20 percent more, when you are breathing out of your mouth. When you are doing certain intense exercises if you are panting in and out of your mouth, it becomes very inefficient.

“You will find yourself calmer throughout the day having trained the breath to flow through the nose, but also as a practitioner your nasal breath amplifies the effects of your practice, both in pranayama and asana.”

Cited study:

1. 2012, Quantitative imaging of energy expenditure in human brain, Zhu et al.

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