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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.

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E

E-Cigarettes - National Library of Medicine

Welcome to NewMedicalTerms, your ultimate guide to the explanations and definitions of the majority of medical terms you may see.

E-cigarettes, or electronic cigarettes, are battery-operated smoking devices. They often look like cigarettes, but work differently. Using an e-cigarette ...

E. Coli Infections - National Library of Medicine

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E. coli is the name of a type of bacteria that lives in your intestines. Most types of E. coli are harmless. However, some types can make you sick and cause ...

Vitamin E - National Library of Medicine

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Vitamins are substances that your body needs to grow and develop normally. Vitamin E is an antioxidant. It plays a role in your immune system and metabolic processes. ...

Hepatitis - National Library of Medicine

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... viruses -- hepatitis viruses A, B, C, D, and E. In the United States, A, B, and C ... is viral hepatitis spread? Hepatitis A and hepatitis E usually spread through contact with food or water ...

Smoking - National Library of Medicine

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... much tobacco as an entire pack of cigarettes. E-cigarettes often look like cigarettes, but they work ... They are battery-operated smoking devices. Using an e-cigarette is called vaping. Not much is known ...

Antioxidants - National Library of Medicine

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... Lutein Lycopene Selenium Vitamin A Vitamin C Vitamin E Vegetables and fruits are rich sources of antioxidants. ... lung cancer in smokers. High doses of vitamin E may increase risks of prostate cancer and one ...

Immune System and Disorders - National Library of Medicine

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What is the immune system? Your immune system is a complex network of cells, tissues, and organs. Together they help the body fight infections and other ...

Infant and Newborn Nutrition - National Library of Medicine

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... may put your child at risk for an E. coli infection. E coli is a harmful bacteria that can cause ...

Smoking and Youth - National Library of Medicine

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... The problem is not just cigarettes. Spit tobacco, e-cigarettes, and cigars are not safe alternatives to ...

Vitamin K - National Library of Medicine

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... also need to be careful about taking vitamin E supplements. Vitamin E can interfere with how vitamin K works in ...

Anemia - National Library of Medicine

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If you have anemia, your blood does not carry enough oxygen to the rest of your body. The most common cause of anemia is not having enough iron. Your body ...

Antibiotics - National Library of Medicine

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... such as strep throat, urinary tract infections, and E. coli. You may not need to take antibiotics ...

Bacterial Infections - National Library of Medicine

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... bacteria that cause infections include Streptococcus, Staphylococcus, and E. coli. Antibiotics are the usual treatment. When you ...

Blood Disorders - National Library of Medicine

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Your blood is living tissue made up of liquid and solids. The liquid part, called plasma, is made of water, salts and protein. Over half of your blood is ...

Fatty Liver Disease - National Library of Medicine

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... investigating whether a certain diabetes medicine or Vitamin E can help, but more studies are needed. The ...

Infections and Pregnancy - National Library of Medicine

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During pregnancy, some common infections like the common cold or a skin infection do not usually cause serious problems. But other infections can be dangerous ...

Movement Disorders - National Library of Medicine

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Movement disorders are neurologic conditions that cause problems with movement, such as: Increased movement that can be voluntary (intentional) or involuntary ( ...

Neuromuscular Disorders - National Library of Medicine

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Neuromuscular disorders affect your neuromuscular system. They can cause problems with: The nerves that control your muscles Your muscles Communication between your ...

Quitting Smoking - National Library of Medicine

Welcome to NewMedicalTerms, your ultimate guide to the explanations and definitions of the majority of medical terms you may see.

... nicotine addiction. Some people think that switching to e-cigarettes can help you quit smoking, but that ...

Sickle Cell Disease - National Library of Medicine

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What is sickle cell disease (SCD)? Sickle cell disease (SCD) is a group of inherited red blood cell disorders. If you have SCD, there is a problem with ...