How Do You Keep Your Immune System Healthy? Center

Your immune system helps heal and keep you healthy. It is your barrier against illness, infection, and disease. To function properly, your immune system requires a nutritious diet, regular exercise, and a low level of stress. Read more: How Do You Keep Your Immune System Healthy? Article

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A Cold or The Flu? How to Tell the Difference See Slideshow

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Medically Reviewed by a Doctor on 5/4/2022

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