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When the events of "sickness" and "recovering" take place, our bodies become a battleground in of a bitter struggle. Microbes intrude into our body and reproduce rapidly. The body, however, has a mechanism that combats them. Known as the "immune system", this mechanism is the most disciplined, complex and successful army of the world. This system proves that the human body is the outcome of a unique design. In other words, the human body is an evidence of the flawless creation of God.