Ever known someone who always seems to have sniffles, who gets sick very easily and has to stay home many times and miss important events? How about someone who is often cheerful and full of life, and who is hardly ever sick? Some people are so healthy that they seem to never even catch a cold. 

All their friends may be struck down by the flu or some common virus, yet they continue to be as hale and hearty as ever. The difference between someone who's sickness-prone and another who's seemingly sickness-proof lies with their immune system. One has a healthy immune system while the other doesn't.

The immune system is our body's defender against billions of microorganisms that seek to enter our body, take residence inside and multiply while causing injury. Many germs destroy or weaken cells inside our body, while others take away nutrients essential for normal functioning. 

A number of germs also release harmful toxins or poisons. Bacteria and viruses are the usual "pathogens" or microorganisms that cause damage. Viruses are generally harder to get rid of because they are so small, and they can hide inside normal body cells.

But our body's immune system, when operating at maximum strength, is a formidable force that can exterminate most germs. This is why many diseases are "self-limiting," meaning that they are gone in a few days' time even when the sick person does not taken any medication.

Our immune system consists mainly of white blood cells called leukocytes. These are like soldiers who are always on the lookout for enemy attack and are ready to fight at a moment's notice. Some leukocytes seek out and gobble up invading microbes. Other white blood cells, aptly called killer cells, literally destroy the unwanted trespassers. 

Interestingly, certain leukocytes have the facility to "remember" microorganisms that once invaded the body. When these leukocytes recognize the repeat invaders, special proteins called "antibodies" are released to neutralize the germs. Such is the explanation why people who were once infected with a certain disease acquire a natural immunity against that disease. One who had chickenpox, for example, will not have it again, even if he is exposed to the varicella or chickenpox virus again and again.

We can maintain a healthy immune system by eating well, getting sufficient rest and sleep, exercising sensibly, and avoiding excessive stress. A balanced diet is a must, but if it is not possible, then supplementation is recommended. 

Take a supplement that has all the essential nutrients, vitamins and minerals, such as Isotonix Multivitamins. The special formulation of this particular supplement prevents it from breaking down and losing its potency before being circulated in the bloodstream. When it reaches the target cells with full potency intact, it is able to give adequate nourishment to the cells.

Stress has been identified as a major factor that can really weaken the immune system. neurotonix Chronic stress is especially harmful. People who experience constant anxiety or pressure should do something to reduce the stress in their life. 

If they cannot do so, then they must learn better coping skills. These will help them from experiencing the many unwanted symptoms of a weakened immune system: constant fatigue, lethargy, allergies, diarrhea, and recurring infections. With proper care, we all can maintain a healthy immune system, and stay strong and sickness-free.