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What is the role of the immune system?

Our immune system is our body's vital self-policing system. It constantly monitors our health and goes into action to thwart any potential problems. When we pick up viruses or bacteria, our immune system works to find and destroy them. When a threat occurs from within the body—such as when a cell becomes malignant—the immune system works to root it out.

The RealAge Makeover: Take Years off Your Looks and Add Them to Your Life

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The RealAge Makeover: Take Years off Your Looks and Add Them to Your Life

Why not live at 60 feeling like you did at 35?Thousands of Americans are younger today than they were five years ago. How is that possible? By following the specific recommendations that reverse...

The role of the immune system is to defend the body against infection. The immune system is made up of different cells that work to get rid of germs before they cause infections.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.