Nutrition basics
Learning Center
Infectious diseases
Viruses, bacteria, fungi and parasites can all cause infection. Find out more about how to prevent and treat these conditions.
Malaria
Learn about the symptoms, causes, treatment, and prevention of this infectious disease transmitted to humans through mosquito bites.
Rotavirus
Learn more about this common childhood condition that causes fever, vomiting, diarrhea and sometimes abdominal pain.
Takayasu's arteritis
Understand this rare disease that damages the aorta, the large artery that carries blood from your heart to the rest of your body.
Blocked tear duct
Watery, irritated eyes may occur when your tears can't drain normally. Learn about this common eye condition that affects newborns and sometimes, adults.
Anaphylaxis
Anaphylaxis, a severe allergic reaction, is an emergency. Learn who's at risk, what to watch for and what to do when it occurs.
Dental floss vs. water flosser: Which is better?
Cleaning between your teeth every day is an important part of good oral health.
Taurine in energy drinks: What is it?
Energy drink ingredients can cause concern for some who consume these beverages.
When to brush your teeth
When should you brush your teeth? Learn how to protect your oral health.
Monosodium glutamate (MSG): Is it harmful?
Monosodium glutamate (MSG) can trigger headaches and other symptoms in some people.
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