How your immune system works

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Inside your body there is an amazing protection mechanism called the immune system. It is designed to defend you against millions of bacteria, microbes, viruses, toxins and parasites that would love to invade your body. The immune system, however, can become weakened, compromised, or malfunctioning. Health problems can arise, then. To learn more about how the immune system operates, visit this interactive page on “how stuff works.” (posted January 31, 2013)
http://science.howstuffworks.com/life/human-biology/immune-system.htm

 

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