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The Importance of Breathing
Through Your Nose
Many of us are habitual mouth breathers--either in our daily life or when we
are exercising or stressed out. For most of us, this habit began in childhood
and not only diminishes our energy but also undermines our health and
well-being.
Except for emergencies, our breathing was designed to take place mainly
through our nose. The hairs that line our nostrils filter out particles of dust
and dirt that can be injurious to our lungs. When too many particles accumulate
on the membranes of the nose, we automatically secret mucus to trap them or
sneeze to expel them. The mucous membranes of our septum, which divides the
nose into two cavities, further prepare the air for our lungs by warming and
humidifying it.
There is another important reason for breathing through the nose, one that
was not taught to us in school or by our parents. This has to do with
maintaining the correct balance of oxygen and carbon dioxide in our blood. When
we breathe through our mouth we usually inhale and exhale air quickly in large
volumes. This can lead to hyperventilation (breathing excessively fast for the
actual conditions in which we find ourselves). It is important to recognize
that it is the amount of carbon dioxide in our blood that generally regulates
our breathing. If we release carbon dioxide too quickly, the arteries and
vessels carrying blood to our cells constrict and the oxygen in our blood is
unable to reach the cells in sufficient quantity. This includes the carotid
arteries, which carry blood (and oxygen) to the brain. The lack of sufficient
oxygen going to the cells of the brain can turn on our sympathetic nervous
system, our "fight or flight" response, and make us tense, anxious,
irritable, and depressed.
One researcher, Dr. Konstantin Buteyko of Russia, claim that insufficient
carbon dioxide in our blood also leads to the symptoms of asthma, various other
breathing disorders, and even angina, as the body struggles to maintain the
correct balance of oxygen and carbon dioxide. He states that to keep the right
balance in someone whose carbon dioxide level is too low the body automatically
tries to increase the amount of carbon dioxide in the blood by constricting the
airways, swelling tissues, secreting mucus, and so on--thus making it more
difficult to quickly inhale and exhale large volumes of air.
Dr. Buteyko has apparently had great success in treating asthma and other
disorders emphasizing nose breathing and using special techniques, including
shallow breathing and breath-holding, designed to reduce the volume of air that
we breathe and increase the carbon dioxide level in the blood. As promising as
this approach may seem in relation to health problems such as asthma, however,
breath-holding and intentional shallow breathing are neither healthy nor
natural for the majority of us, and any effort to impose them on our breathing
to increase our carbon dioxide level would lose many of the benefits of natural
breathing, which utilizes, when necessary, the full range of coordinated
movement in our diaphragm, belly, and ribcage.
A SIMPLE PRACTICE
Here's a simple, beneficial practice you can try. Over the next few days or
weeks, see if you can observe and sense your breathing several times a day in
the middle of your activities. Notice whether or not you are breathing through
your mouth. Also notice how often you hold your breath. For some of you, mouth
breathing or breath holding may be a frequent activity. For others, it may
occur mainly in physically, emotionally, or mentally stressful situations. When
you notice yourself breathing through your mouth or holding your breath, remind
yourself to breathe through your nose and to stop holding your breath.
diaphragmatic breathing
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