MedlinePlus is a service of the National Library of Medicine (NLM), the world's largest medical library, which is part of the National Institutes of Health (NIH). It was built as an online health information resource for patients and their families and friends.
MedlinePlus presents high-quality, easy to understand, relevant health and wellness information that is trusted.
... example, everyone needs folic acid, a type of B vitamin. But if you're trying to get ...
... you did before pregnancy: Folic acid is a B vitamin that may help prevent neural tube defects.
...
What is prenatal testing? Prenatal testing provides information about the health of your fetus before the baby is born. Some routine tests during pregnancy ...
... factor? There are four major blood types: A, B, O, and AB. The types are based on ...
... provider may recommend vaccinations for hepatitis A and B, the flu and pneumococcal disease. Get regular exercise, ...
What is telehealth? Telehealth is the use of communications technologies to provide health care from a distance. These technologies may include computers, ...
What are vaccines? Vaccines are injections (shots), liquids, pills, or nasal sprays that you take to teach the immune system to recognize and defend against ...
What are peripheral nerves? Nerves are like wires that carry messages back and forth between your brain and your body. Your peripheral nerves branch off ...
What are viruses? Viruses are very tiny germs. They are made of genetic material (either DNA or RNA) inside of a protein coating. There are a huge number ...