We all harbor viruses, bacteria, fungi, and other assorted pathogens and parasites in our bodies—but not everybody suffers illnesses. A functional immune system can usually handle the situation.
Like it or not, our bodies are normally loaded full of organisms that could cause disease. The key is how well each body manages them to maintain a healthy balance and prevent them from overwhelming the system. In fact, it is virtually impossible to be alive and not be carrying potentially pathogenic organisms.
Your own body is what holds the key to overcoming illness due to infection. If your body’s natural systems are not better… you are not better!
Human immune systems have been capably fighting infection for as long as humans have roamed the earth. Our bodies have always been inhabited by microbes, with the immune system on the task to battle the bugs.
Here’s what it is all about:
The immune system fights against infectious microorganisms (microbes, germs) and other irritants. We call the various steps it takes the immune response.
The parts of our great defense system include a vast network of cells, tissues, and organs that protect the body. We have several types of white blood cells (leukocytes), which are the chief attackers of germs. Some white blood cells “eat” the bacteria, viruses, fungi, and other invaders. Others are responsible for “remembering and recognizing” these invaders from previous exposure.
One measure of immune system strength is counting the numbers of the different types of white blood cells in a sample of blood. A low white cell count can suggest various problems, including infection. The normal count should be between 4,500 and 10,000 cells per micro liter. In addition to illness, there are numerous prescription drugs that can alter white blood cell counts. The CD57 blood test can be a useful indicator of a weak immune system.
Antigens and Antibodies
We call a foreign substance that invades and irritates the body an antigen. Your body recognizes that specific proteins from viruses, bacteria, fungi, etc. are not human cells. The immune system develops antibodies, which are specialized proteins that provide the memory for the body to signal a defense, should future exposure of the germs take place.
That’s what immunity is all about!
But memory isn’t enough; there must be a system of attack. That’s what white blood cells known as T-cells do. They are produced by your thymus gland located near your heart. A healthy spleen acts as a filter of foreign cells, and thus plays an important role of immunity. Those who have had their spleen removed tend to get sick more often.