What Do You Know About Your Immune System?
By Chris Woolston
CONSUMER HEALTH INTERACTIVE
You owe your life to your immune system. Without all of those antibodies and white blood cells and other warriors working in your defense, your body would soon be overridden with infections and cancers. But there's another side to the immune system. Like an army that suddenly turns against itself, the cells of the immune system can start attacking the body, resulting in an autoimmune disease. Millions of Americans live with some form of autoimmune disease. How much do you know about these disorders? Take this short quiz to find out.
Last updated Sep 18, 2009
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