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The human immune system is the most vital part of the body system; it is made up of special cells, tissues, proteins and organs that defend the body against any outside threat. A healthy immune system helps protect the body from germs and microorganisms that attack the body.

Utmost care should be taken to keep the immune system healthy so as to prevent germs and microorganisms from attacking and destroying body cells. Here are some habits to avoid for a healthy immune system:

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