Immune system
Your body's immune system is designed to protect you from, or get rid of, infection. Learn more about how the immune system works.
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Zinc and your health
Zinc is a mineral that is essential for many of the body's normal functions and systems. Learn more about how much you need and how to get enough.
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Autoimmune conditions
Autoimmune diseases strike when the immune system attacks healthy cells in the body. Read about the causes, symptoms and treatment options.
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Adenoids
The adenoids are small lumps of soft tissue found at the back of the nose. Healthy adenoids are part of the immune system in young children.
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Allergies and hypersensitivities
An allergic reaction occurs when the immune system overreacts to a substance. Find out about common allergies, their symptoms and treatments.
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Probiotics
Probiotics are live bacteria and yeasts that are good for your digestive and immune systems. They’re naturally found in food or taken as supplements.
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Connective tissue diseases
Connective tissue diseases can affect many different areas of the body and the immune system, caused by single gene mutations or inflammation. Learn more here.
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Autoimmune diseases — an overview
Autoimmune diseases occur when your immune system attacks your own body. Learn more about the diagnosis and treatment of these diseases.
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Cancer immunotherapy
Immunotherapy is a type of cancer treatment that boosts the immune system so it can fight the cancer. Learn how it works and which cancer types immunotherapy can treat.
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Lupus
Lupus is a disease where your immune system attacks your own normal cells. Its cause is not yet entirely understood, but treatments are available.
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