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What is Respiratory?


The body's breathing system is known as the respiratory system and is, with the heart and blood supply, probably the most important system in the body. When working properly it provides us with the oxygen we need to survive and removes carbon dioxide we do not need. The human body can go without food for weeks, without water for days - but without oxygen from the air we breathe we cannot last more than a few minutes.

Of all the muscles in the body, the muscles we use to breathe are the only ones over which we have dual control; that is, they can work both automatically and voluntarily. In healthy people, breathing in and out happens automatically but, when necessary, we can also control it. We do this, for example, to avoid inhaling smoke and fumes, when singing, or when swimming under water.

How We Breathe?
The respiratory system is made up of the rib cage and intercostal muscles, the diaphragm - a sheet of muscle between the chest and stomach - and the respiratory tract, which comprises the airways and lungs.

When we breathe, the muscles in the thorax that link the ribs contract, pulling the ribs up and out. The diaphragm pulls the chest cavity down, and together these two processes cause the lungs to expand.

Cold air is drawn in through the nose where it is warmed and then taken down into the lungs. When enough air has been inhaled successfully (which is called inspiration), the muscles and diaphragm relax and the air is exhaled as the lungs compress (called expiration). Then the diaphragm contracts once more and the cycle begins again.

When the air passes through the nose it enters the trachea (the windpipe) and the bronchi, Which are small airways that run through each lung.These bronchi become smaller and smaller, eventually taking the form of bronchioles, which end as tiny air sacs called alveoli. The alveoli are linked to blood capillaries, which exchange oxygen and carbon dioxide at a very quick rate.

On average we take about 12 breaths per minute, and that rate is controlled by the body according to its needs at a particular point in time. If there is too carbon dioxide and too little oxygen, the rate of respiration will increase and the body will gulp or gasp for air.

This may, for example, occur during strenuous exercise, an asthma attack, or in fright. When the levels of oxygen and carbon dioxide return to normal, breathing returns to its normal rate of respiration.

When we are stressed, we may breathe at an accelerated rate. Rapid breathing is a general response to stress, and it leads to overall tension of the muscles and eventually dizziness, faintness, and a sensation of pins and needles caused by metabolic changes in the body.

Overbreathing causes the concentration of carbon dioxide in the alveoli of the lungs to fall, leading to a buildup of alkali in the bloodstream and tissue fluid. This alkalosis produces the symptoms outlined above.

When we breathe normally, and efficiently, we use our diaphragm, which contracts and becomes flat, increasing the space in the chest into which the lungs can expand. When lungs are able to expand to their full capacity, all residual carbon dioxide is expelled and more oxygen can be inhaled. Many adults have to relearn breathing because of lifelong bad habits.

Respiratory Illnesses:
A variety of disorders - physical injury, infections, viruses, allergies, and diseases - can disrupt and endanger the normal breathing processes.

Treatment With Natural Remedies:
When people become ill they tend to seek medical help. However, there are certain illnesses for which your doctor can provide no treatment and a visit is simply a waste of time and money. These are various types of respiratory problems.

To determine whether the doctor can or can't help there is some important information you need to know. You need to know the difference between viral illnesses or illnesses caused by a virus and those caused by bacteria.

The doctor can't provide any better treatment for a viral infection than you can provide for yourself at home. Of course, he can prescribe some medication, tell you to get plenty or rest, drink lots of fluids, and eat lightly. For this you will pay his standard office call fee plus the price of the prescription.

However, you could buy equally effective supplements, give yourself the same advice, and follow it. Then, when you well again, you can use the fee money to treat yourself to something special you have always wanted.

Viral Infections:
The most common viral infection is what the medical profession refers to as Viral URI and we all know as the "common cold."

As you know, this involves one or more of the following: nasal congestion, sore throat, hoarseness, fever, swollen glands, cough, aching muscles, and congested ears. Colds usually begin with just one symptom and the others quickly follow. And one of the symptoms, usually the cough, remains for a short time after the others leave.

Colds are just as well treated by over the counter medications such as decongestants, pain relievers, antihistamines, cough drops etc. There are also many herbal remedies available at health food stores and a host of "home" remedies.

Although a sore throat is common with a cold, it can also be a result of a bacterial infection. So how to tell the difference?

Bacterial Infection:
Respiratory infections that are cause by bacteria usually have a single location in the respiratory tract. For example, if a sore throat is a streptococcal infection it is bacterial. A strep throat may be accompanied by fever and swollen lymph glands but a runny nose, cough, congested ears, or aching muscles would not be present.

Strep throat can be helped by a visit to the doctor's office, as antibiotics may be effective in treating bacterial infections. However, the most important reason for seeing a doctor for treatment of strep throat is to prevent rheumatic fever, a complication often resulting from strep throat.

Another viral infection, viral gastroenteritis, commonly known as "stomach flu" may be worthy of a visit to the doctor's office. Symptoms of stomach flu are nausea, vomiting, diarrhea and abdominal cramps. However, these are also symptoms of more serious illnesses such as appendicitis and only a doctor can tell the difference.

Flu is also a viral infection but unlike a cold it is accompanied by intense headaches, muscle aches, and eye discomfort. Simple flu responds to the same treatment as colds but if complications arise, a doctor's visit may be necessary.

Antibiotics:
It is important, however, that people view the use of antibiotics with caution. It is common for patients to race to the doctor demanding an antibiotic for colds, flu, etc. Overuse of antibiotics develops antibiotic-resistant bacteria, making the illnesses that would normally respond to an antibiotic more difficult to treat.

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