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We could not survivewithout the immune system that fights against the microorganisms that areattacking our body. If the immune system fails, the body may will develop a medicalcondition and eventually die. That is why immune system is so important for thesurvival of humans.

Immune system in general

Immune system isactually a system that protects our body from harmful microbes and keeps us ingood health. This system includes different cells, tissues and lymph nodes thatget activated when our body needs to struggle against microorganisms. If ourimmune system is weak, harmful microbes will infect our body easily and causeillnesses. These illnesses will reoccur if we do not strengthen our immunesystem.

What are the functionsof immune system?

The immune system hasthe function to prevent viruses and bacteria from infecting our body. Itdefends our body from these harmful microbes and keeps us healthy. This is avery important function of our immune system, but another important function isto create white blood cells that are fighting directly against the pathogens.These cells can kill viruses and bacteria and therefore, keep us in goodhealth. They also defend our organism from pathogens, without allowing them tospread all over our body.

The immune system isable to recognize harmful bacteria, which is very important since our body alsocontains beneficial bacteria that must not be destroyed. With this ability, wecan be sure that our immune system destroys only pathogens, without fear thatit will attack beneficial bacteria.

It also has thecapability to inform the body that it has been attacked. We get high bodytemperature due to the activity of the immune system. This is very usefulfunction, because that way the immune system develops recognizable symptoms dueto which we are able to know that something is wrong and that we must seek forprofessional help. If we want to live a long life and maintain our health, wemust be very careful about our immune system. We must be sure that it willfunction properly and that can be done by healthy dieting, avoiding alcoholconsumption and smoking cigarettes. If we do not nourish our immune system, itwill be weak and our general health jeopardized.

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