The Anatomy of Breath: A Yogi’s Guide

Leave a Comment / Anatomy, blogging, health, Respiratory System

To sustain life, a body must produce sufficient energy through aspiration. Breathing is perhaps the only system of the body that is both autonomic and conscious depending completely on the awareness and focus of the breather.

Breathing through the nose, all the time, is part of the true yogi’s path. I can remember 6 months into practicing yoga, I attained the ability to breathe through my nose and it complete changed my yoga practice and my life. I got hooked on the feeling of yoga (call it a healthy addiction) and never looked back.

In Yoga, the energy of breath is called prana (प्राण, prāṇa) which can be described as solar wind in the atmosphere, or liquid light^[6]. Through ventilated aspiration, the yogi ingests the prana into the nervous system. In Hindu literature, Prana is described as originating from the Sun and connecting the elements through the Chakras of the human nervous system and conscious awareness.

The nervous system is completely dependent on your breathing to function: The parasympathetic system slows your breathing rate. It causes your bronchial tubes to narrow and the pulmonary blood vessels to widen. The sympathetic system increases your breathing rate. It makes your bronchial tubes widen and the pulmonary blood vessels narrow.^[4] This process of is also known as the “fight or flight” response. This happens through ventilation, or respiration as the body mobilizes itself to a threat. However, this system is over-active in our cultures because of our stress responses to non-life threatening stimuli. It is healthier for a human to regularly breathe through the nose.

The Nasal Cavity

“The function of the nasal cavity is to warm, moisturize, and filter air entering the body before it reaches the lungs.^[1]” Here are the additional benefits:

Nose breathing is beneficial primarily because it allows your nasal cavities to:^[2]

msdmanuals.com/home/lung-and-airway-disorders

reduce exposure to foreign substances.
humidify and warm inhaled air.
increase air flow to arteries, veins, and nerves.
increase oxygen uptake and circulation.
slow down heart rate.^[3]
improve lung volume.
help your diaphragm work properly.

In essence, hairs and mucus lining the nasal cavity help to trap dust, mold, pollen and other environmental contaminants before they can reach the inner portions of the body and the lung’s organic tissue. Air exiting the body through the nose returns moisture and heat to the nasal cavity before being exhaled into the environment.^[1] The mouth, also known as the oral cavity, is the secondary external opening for the respiratory tract. The mouth is mostly for filtering in eating and drinking.

Oblique muscles (accessory breathing muscles)

Focus on the Exhale

Nasal exhalations are an extremely important focus in yoga. The muscles in your chest and abdomen tighten or contract to create a slight vacuum around the lungs. This causes air to flow in. When you exhale, the muscles relax and the lungs deflate on their own, much like an elastic balloon will deflate if left open to the air. The lungs are extremely flexible sacks of tissue that have the ability to expand and contract.

References:

Cold 1936_Pneumonia_prop_strikes_like_a_man_eating_shark

What Does Cold Weather do to Your Body?

Leave a Comment / Anatomy, art, Body, health, reality, Respiratory System, Science

Cold Weather and Lower Temperatures Affect the Human Body

The Human Body is made to deal with the Cold

Cold Temperatures stress the body, but the human body is meant to adapt to colder conditions. You see, low temperatures stress the body; but in a way, it is a very psychological phenomenon. It happens in your mind. The way that you react mentally can have a big effect on how the stress of cold affects you. However, for this article we will discuss primarily the physiological response of the human body to low temperatures.

Over time, the body will adapt to colder conditions. Even brief exposure to low temperatures lead to increased levels of norepinephrine and cortisol, lymphocytosis, decreased lymphoproliferative responses, decreased levels of TH1 cytokines and salivary IgA, and increased lactate levels during exercise. It takes time for the body to de-stress itself in the cold.

Does Exercising Help in the Cold?

Exercising in the cold doesn’t seem to help too much. It can for a short period of time though. Just try not to sweat! Exercising exhausts the bodies energy reserves for immediate heat. Though in general, exercising is a good way to keep the immune system strong. Sweating also causes the body to lose heat quickly.

It seems that previous exposure to cold temperatures is one of the few things that helps the body to adapt. But acute exposure of the skin can have a huge effect on the body’s immune response, so be sure to keep your skin covered in colder temperatures until your body has adapted. They say it takes about 2-3 weeks for your body to adapt to those lower temperatures.

The Cold and the Human Heart’s Health

Cold weather and Cardiovascular Health

People die more often of heart and respiratory diseases in the winter. Vasoconstriction increases blood pressure during the bodies cold-stimulus response. The decrease in cellular plasma also creates a lot more work for your heart.

The Body’s Response to Cold over Time

Exposure to cold causes the sympathetic nervous system to heat the body by constricting blood flow to the extremities and superficial tissue. The body then begins to constrict the flow of the immune system, as well as the nervous system. As the nervous system restricts flow, the extremities lose blood flow until frostbite and more serious, permanent damage occurs.

Who do Mammals Shiver?

Why do you Shiver when it’s Cold Outside?

Over time, the blood pressure increases to cope and the body begins to shiver at a certain point. Once you are shivering heavily, you are at the point where you can get frostbite, or even hurt yourself because the body convulses so strongly. But this can also happen well above frostbite temperatures due to the body’s tolerance level. As people get older, they shiver less, which results in a more rapid drop of temperature upon exposure.

Here’s how Shivering works Neurologically:

Located in the posterior hypothalamus (brain) near the wall of the third ventricle is an area called the primary motor center for shivering. This area is normally inhibited by signals from the heat center in the anterior hypothalamic-preoptic area but is excited by cold signals from the skin and spinal cord. Therefore, this center becomes activated when the body temperature falls even a fraction of a degree below a critical temperature level.

Humans heat themselves Naturally by Burning Fat

Humans also have regulatory neurotransmitters and hormones to help the body burn fat for heat when the body is cold. This is primarily how the newborn and elderly bodies create heat. As we get stronger immune systems, the body shiver response gets stronger, apparently.

Injuries from cold temperatures:

frostbite, hypothermia, heart attacks due to decreased blood flow

References

Common Cold Wiki –

No antibiotics, Cough Meds are BS… eat some candy:

Possible explanations may include temperature-induced changes in the respiratory system,^[42] decreased immune response,^[43] and low humidity causing an increase in viral transmission rates, perhaps due to dry air allowing small viral droplets to disperse farther and stay in the air longer.^[44]The apparent seasonality may also be due to social factors, such as people spending more time indoors, near infected people,^[42] and specifically children at school.^[37]^[41]

There is some controversy over the role of low body temperature as a risk factor for the common cold; the majority of the evidence suggests that it may result in greater susceptibility to infection.^[43]Herd immunity, generated from previous exposure to viruses, plays an important role in limiting viral spread, as seen with younger populations that have greater rates of respiratory infections.^[45]

Poor immune function is a risk factor for disease.^[45]^[46] Insufficient sleep and malnutrition have been associated with a greater risk of developing infection following rhinovirus exposure. Due to their effects on immune function.^[47]^[48] Breast feeding decreases the risk of acute otitis media and lower respiratory tract infections among other diseases,^[49] and it is recommended that breast feeding be continued when an infant has a cold.^[50] In the developed world breast feeding may not be protective against the common cold in and of itself.^[51]

The Anatomy of Nose Breathing

1 Comment / Anatomy, breathing, health, Respiratory System, yoga, yoga benefits

Why is Nose Breathing Important?

Nose breathing is the most essential part of yoga. It is also poorly understood in modern culture. Breathing through the nose is physiologically much different than breathing through the mouth; there is far more space in your nasal cavity than in your mouth to start. There is also a filtration system in the nose that doesn’t exist in the throat. You can see this on the right; the tongue takes up the vast majority of the space in the mouth and the nasal passageway is very small at certain points. The mouth actually makes for a more narrow and less effective breathing passageway, especially when you consider the benefits of the pressure system that exists in the nasal cavity. Your body craves breathing through the nose, especially while you sleep! Human breaths are more powerful through the nose.

There are studies that have shown all kinds of benefits of breathing through the nose; it is even considered the proper method for breathing by the scientific community. “[Nose breathing] increases circulation, blood oxygen and carbon dioxide levels, slows the breathing rate and improves overall lung volumes ” Swift, Campbell, McKown 1988 Oronasal obstruction, lung volumes, and arterial oxygenation.

Breathing through the nostrils has also been proven to improve brain function; opposite nostril breathing stimulates the opposite hemisphere of cortex and the nervous passageways in the cortex (ie left nostril breathing is associated with stimulating right brain activity).

There is also significant research being done on the relationship between the prefrontal cortex and the passageways to the lungs. It is being shown that there are major correlations between ADHD and sleep disorders and breathing habitually through the mouth. Information beyond the clinical applications for sleep apnea where hard to find; obviously the health need ($$) for assistance with sleep apnea is somewhat sizable, therefore there is more research done around it. However, it has been proven that alternate nostril breathing affects the brain’s physiology; there are some extremely close relationships between specific portions of the brain and the respiratory pathways, especially in the hindbrain (medulla and pons).

There is an ever-increasing body of research on the relationship between sleep apnea, asthma, and on the negative effects of breathing habitually through the mouth. Nose breathing is more protective and efficient at fueling the human body’s need for oxygen; however, the passageway is relatively easily obstructed. The mouth has been shown to be more efficient at releasing carbon dioxide quickly than the nose, although exhaling through the nose has notable benefits for the mucus membrane and cilia of the nose. Let’s explore how the nose is a powerful filtration system for the lungs.

Filtration Systems

When I was 25 I visited Beijing with some of my friends from the time that I studied abroad in Paris. While I was there, I noticed myself continually nose breathing due to the large particles in the air. I was fairly deep into my yoga practice so I was used to breathing through my nose for long periods of time, but I instinctively understood that breathing through my nose would help to filter the air and keep the large bronchitis and cancer causing particles out of my trachea and mouth.

“The nose serves as the only means of bringing warm humidified air into the lungs. It is the primary organ nose breathing for filtering out particles in inspired air, and it also serves to provide first-line immunological defense by bringing inspired air in contact with mucous-coated membranes that contain immunoglobulin A (IgA).”

The nose assists in stimulating the immune system. The changes in pressure stimulate the physiological processes associated with the maintenance of the mucus membrane and help to retain oxygen in the lungs. It also provides humidity and heat for the air entering the lungs, as well as increased filtration from the cilia and small hairs that line the nose. In the picture above, you can see the olfactory(smell) nerves and the organization of blood vessels within the nasal cavity. Overall, it is a good idea to concentrate on breathing through the nose, whether sleeping, awake, or even during milder forms of exercise.

Why is this important for yoga?

This information helps to explain a large portion of why yoga is so beneficial for the body. Breathing intensively through the nose for one to two hours creates space for the habit of constantly breathing through the nose. This is probably the biggest reason that in clinical studies, sleep quality of subjects who practice yoga is higher. Breathing’s relationship to the functioning of the brain is also interesting; some studies have shown that yawning helps to cool the brain, but the act of yawning is probably far more complex than that simple generalization.

Questions?

How does nasal breathing affect the hippocampus and memory?

How does nose breathing affect the hypothalamus and the regulation of your emotions through the endocrine system?

What parts of the brain does yawning cool?

What portions of the cortex received the greatest benefit from breathing through the nose? How about the mouth?

These questions, at least as far as I can tell, science has yet to answer. But we do have clinical evidence that yoga positively affects mood disorders, PTSD, anxiety, depression, and there are a lot of very positive findings between yoga and cardiovascular health, while simply nasal breathing is proven to positively affect the heart and lung tissue. It is probably just a matter of time before we discover more of the benefits of yoga and of nose breathing.

Don’t be a mouth breather! 🙂

References:

http://emedicine.medscape.com/article/874771-overview
http://onlinelibrary.wiley.com/store/10.1111/j.1398-9995.1999.tb04402.x/asset/j.1398-9995.1999.tb04402.x.pdf;jsessionid=AECDFA5F44190494D5E7B315E7A6FEB2.f01t03?v=1&t=ilmeorkg&s=c4bc17315db2cd2d969feca8ad933515fa409e02&systemMessage=Wiley+Online+Library+will+be+unavailable+for+up+to+3+hours+on+Saturday+19th+March+2016+from++11%3A00-14%3A00+GMT+%2F+07%3A00-10%3A00+EDT+%2F+19%3A00-22%3A00+SGT+for+essential+maintenance.++Apologies+for+the+inconvenience.
http://care.american-rhinologic.org/nasal_physiology
http://medind.nic.in/iad/t05/i4/iadt05i4p251.pdf
http://www.ncbi.nlm.nih.gov/pubmed/8063359
http://journals.lww.com/neuroreport/toc/2013/12040
http://online.liebertpub.com/doi/abs/10.1089/acm.2005.11.711

Ujjayi Breathing – The Victorious Yogic Breath

1 Comment / Anatomy, Respiratory System, taoism, yoga

The “Victorious” Breath

That changes in respiration that occur during a yoga practice might be the greatest benefit of yoga. Deep breathing using a technique such as the Ujjayi breathing technique can relieve stress and toxicity from the heart and the entire circulatory system. Ujjayi breathing specifically relaxes the body through diaphragmatic breathing meaning that air travels first into the bottom of your lungs, then fills them up from the bottom.This will normally sound a lot like the waves of ocean.This form of breathing is done during the entirety of a yoga practice, until one rests in savasana and the breathing is relaxed into normal mouth/nose breathing. But yoga is not the only time that you should feel you are allowed to practice this powerful relaxation technique. Anytime you need to control your stress response, you can use this technique to help regulate your stress level and respond appropriately to the situation.

How to Do Ujjayi Breathing

There are a few ways to begin Ujjayi breathing:

Start with a cross legged seated position, if possible:

Take deep breaths through your nose into your abdominals while sitting upright. Try to relax your muscles as you breath exclusively into your nose
Inhale into your nose and relax your shoulders as much as possible. Notice your belly rise and fall and your shoulders relax down your spine a little as you lift your best.
Bend your torso over your thighs, bend your knees, release your neck muscles so your forehead is heavy and leaning forward towards the floor. Take big breaths through your nose.

These are just a few ways to get started, but eventually you will get your Ujjayi breathing to be second nature, especially if you practice a lot of yoga.

A few more notes about how the Ujjayi breathing functions optimally: try to keep your inhales and exhales about the same length and continuous throughout the practice; if you notice your breathing stopping then try backing off a little and focus on increasing the quality of your breathing; don’t strain your lungs if you haven’t practiced in a while, its easy to do when you take extended breaks from yoga.

These techniques should help you to maintain a safe and powerful breath technique during your yoga practices.

A Taoist Tradition

Ujjayi comes partially from Taoist and yogic practices for meditation. Ujjayi can significantly add to the meditative quality of a yoga class and I have personally found it to be the defining factor of how well my yoga practice goes. It can also increase internal body heat and increase oxygenation to the muscles, both can significantly increase vitality.

Krishnamacharya taught that Ujjayi breathing helps to keep the energy sealed into the body, while using the bandhas to fully interlock energy into the spinal cord while practicing yoga. He also taught that a lock of the pelvic floor is essential to keep the energy within the body.

Ujjayi breathing is a powerful technique that shouldn’t be overlooked in everyday life. It can help you to deal with anxiety, stressful situations, bad drivers, mean bosses, anything that might cause an internal reaction. Use your Ujjayi breathing to your advantage when you want to calm and de-stress your body.

Here are some additional resources for your reference:

The Respiratory System

Leave a Comment / Anatomy, breathing, health, muscles, Organ Systems, Respiratory System, Science

Anatomy of Lungs and Respiration

There is one thing you have done every moment of your life. Even before you can remember. This will be the last thing you do before you die. And your awareness of this thing will partially determine how you exist on planet Earth. Prana, or your breath, is the primary mover on life in your body and corresponds deeply to your mental and physical health.

Humans have two lungs and five lobes, two on the left and three on the right (the right is bigger), each of which can be from 70-100 square meters in surface area, about the same surface area as a tennis court. The lungs have 2,400 kilometers of airways and 300 to 500 million alveoli which are gas exchange points for the bloodstream. These are powerful organs of exchange with the environment, with power and functioning that should not be taken for granted.

The respiratory system is a series of organs responsible for intaking oxygen from the atmosphere and expelling carbon dioxide back into the air. This basic gas exchange between the body and the atmosphere is completely dependent upon the respiratory system and almost every vertebrate animal has one. This exchange affects every other system, as they oxygenation of blood is necessary in every organ. The nervous system also seems to draw energy from the respiratory system, and the cardiovascular system takes cues from the respiratory system (both cue off brain activity) to determine how much blood it should be pumping based on breath rate. When the sympathetic nervous system becomes active (the flight or fight mechanism), heart rate is increased, respiratory rate is increased, the sensitivity of the nervous system is heightened to allow for survival, but this comes at a cost.

Yoga focuses primarily on the respiratory system’s functioning to move the muscular-skeletal system in the opposite way. In our modern world full of non-environmental stress and high levels of adrenaline in non-life threatening situations, the sympathetic nervous system is overactive and is probably the biggest contributor to the high fatality rates from cardiovascular disease (nutrition would be the other competing contributor). The respiratory system is vital to the functioning of every mammal on the planet and is one of the most intricate and powerful tools for surviving, prospering, and thriving on planet Earth.

LadyofHats, Jmarchn – Own work using: Sobotta, Johannes (1982) *Atlas der Anatomie des Menschen / 2 Brust, Bauch, Becken, untere Extremitäten, Haut.* (18^th ed.), Munich: Urban & Schwarzenberg ISBN: 3-541-02828-9. OCLC: 260005032. Gray, Henry (1980) *Gray’s Anatomy*(36^th ed.), Edinburgh: Churchill Livingstone ISBN: 0-443-01505-8. OCLC: 7775214. Yokochi, Chihiro (1991) *Atlas fotográfico de anatomía del cuerpo humano* (3^rd ed.), Mexico: Interamericana/McGraw-Hill ISBN: 968-25-1677-3. OCLC: 33318149. Also used several online diagrams like:[1] [2]

I honestly think the vast majority of people take breathing for granted. Most Americans are in such a rush that they don’t even notice their superpower of consciousness. We don’t learn about breathing in school, or in early sports, which is really a shame because breathing concentration allow for intense amounts of focus. Every athlete should learn breath control techniques from young ages; I can remember when I learned to run with proper form at 15 and I think that learning about breathing should happen even younger. This is what keeps us all alive, after all, and we really should learn how to keep our nervous systems functioning optimally through breathing exercises.

To really understand how intricately related the nervous system and respiratory systems are, we need to go back in time to when you were born. At birth, a babies lungs are full of fluid, but once the child is released from the birth canal, the central nervous system trigger a huge change in reaction to the environment, which then triggers the first breath, about 10 seconds later. From there, the lungs develop rapidly until at about 2, the alveoli are fully developed, then the lungs begin to grow normally until full adult muscular maturity is reached. The lungs are muscular and most mammals use their musculoskeletal systems to support their breathing, as humans do. This is why yoga can alleviate many hampering disabilities having to do with lung functioning, because strengthening the accessory muscles to the diaphragm strengthens the overall functionality of the respiratory system.

The muscles of the respiratory system are the following:

the diaphragm (primary)
the external intercostals
the internal intercostals (intercostals interlace on the inside and outside of the ribs).

The accessory muscles are:

External-and-Internal-Intercostals-of-the-Thoracic-Cage

sternocleidomastoid
scalene muscles
serratus anterior
major & minor pectorals
trapezius
latimus dorsi
thoracic erector spinae
iliocostalis lumborum
quadratus lumborum
serratus posterior, superior, and inferior
levatorescostarum
transversus thoracis
subclavius

As you can see, there are a tremendous amount of accessory muscles involved in breathing. I interpret this a particular way, that there is an enormous spectrum between thriving and breathing with ease and freedom contrasted to breathing for survival, or breathing only with the diaphragm and ribs, which puts extreme amounts of stress on those muscles. I think the idea of balance between the primary and accessory muscles is the right idea, and the stronger the accessory muscles, the more powerful breathing will follow. This takes time, muscles build strength in increments, and this is probably the biggest reason why yoga is so difficult for many Americans. Because we need it the most!

Questions

What kinds of breathing exercises do you practice for optimal health?
What kinds of breathing exercises would you like to learn about?
Do you find that breathing affects your mental health?
Do you find time to meditate on your breathe during the day?