By Eugene Wallace
The immune system is the body defense system that defends against infectious microorganisms such as bacteria, fungi, and viruses. It responds by attacking the organisms that tend to invade the body and cause diseases. However, at times, due to various reasons, the system gets overpowered, and the microorganisms will invade the body and make it sick. They also destroy the white blood cells in the body, hence making the body susceptible to various other diseases if one is not tr