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Those most at risk for pneumonia include older adults, smokers, and people with chronic lung diseases. Here's what you need to know to protect yourself.

When the carotid arteries are healthy, the brain gets all the oxygen and nutrients it needs to function well. If the carotid arteries are damaged, however, it can greatly increase your chances of stroke.

If the kidneys fail, blood is no longer filtered. Though kidney failure has no cure, certain treatments can help keep the body working the best it can.

Hemodialysis is a type of treatment for kidney failure (also called end-stage kidney disease or ESRD). It uses a machine that holds a filter called a dialyzer. As blood flows through the dialyzer, waste is removed and fluid and chemicals are balanced. Hemodialysis treatments are usually done at a special dialysis center.

Learn how to help when someone is having a limited or severe allergic reaction.

Will working while you're pregnant harm your baby? Which medicines are safe to take now? You likely have a host of questions to ask your healthcare provider. Here are some answers.

On this sheet, you'll find answers to some common questions about pregnancy, including those about exercising, traveling, eating, and drinking,

Counseling, also called talk therapy, has been found to be as effective as medicine in treating mild to moderate depression. When done by a trained professional, this treatment is a powerful way to better understand your thoughts and feelings.

Fevers are only a symptom of something else happening in the body. Your child can have a fever and not look or feel hot. So always take your child's temperature for at least 1 minute before deciding how serious a fever is.