A fever is when your body temperature is higher than normal. Here's what you need to know about fevers in children and adults, and when to worry.

Learn about rheumatic fever—its causes, symptoms, diagnosis, treatment, and prevention—to protect heart health and ensure ...

President Trump’s comments this week urging pregnant people to resist taking Tylenol are getting pushback from doctors who argue that mitigating fever during pregnancy is crucial for the health of the ...