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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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Health Fraud - National Library of Medicine

... been proven effective. At best, these scams don't work. At worst, they're dangerous. They also ... the cure our government and Big Pharma don't want you to know about." Include phrases such ...

Hepatitis B - National Library of Medicine

... hepatitis B? Often, people with hepatitis B don't have symptoms. Adults and children over 5 are ... tested for a disease even though you don't have symptoms. If you are at high risk, ...

HIV and Pregnancy - National Library of Medicine

... vaginal childbirth During breastfeeding But having HIV doesn't mean that you can't have children. Treatment with a combination of HIV ... so low that a standard lab test can't detect it. This is called having an "undetectable ...

Hypothyroidism - National Library of Medicine

... underactive thyroid, happens when your thyroid gland doesn't make enough thyroid hormones to meet your body's ... swallowing. Because hypothyroidism develops slowly, many people don't notice symptoms of the disease for months or ...

Insomnia - National Library of Medicine

... African Americans take longer to fall asleep, don't sleep as well, and have more sleep-related ... of the night Feeling as if you haven't slept at all Waking up too early What ...

Osteoarthritis - National Library of Medicine

... loose or unstable What causes osteoarthritis? Researchers aren't sure what causes osteoarthritis. They think that it ... running, or throwing. Having a joint that doesn't line up correctly. A family history of osteoarthritis. ...

Reflux in Infants - National Library of Medicine

... normally stays closed, so the stomach contents don't flow back into the esophagus. In babies who ... muscle becomes weak or relaxes when it shouldn't. How common are reflux and GERD in infants? ...

Stress - National Library of Medicine

... money problems, and other daily pressures that don't stop. Stress from sudden, difficult changes in your ... keep your immune system strong, so you don't get sick. Try relaxing activities. You could look ...

Tooth Decay - National Library of Medicine

... minerals all day long. But if you don't take care of your teeth and/or you ... risk of tooth decay, including people who: Don't have enough saliva, because of medicines, certain diseases, ...

Vitamin D Deficiency - National Library of Medicine

... in vitamin D for different reasons: You don't get enough vitamin D in your diet You don't absorb enough vitamin D from food (a malabsorption problem ) You don't get enough exposure to sunlight Your liver or ...

Adrenal Gland Disorders - National Library of Medicine

... a condition in which the adrenal glands don't make enough cortisol Cushing's Syndrome - a condition caused ... inherited disorders in which the adrenal glands don't make enough cortisol. The most common type is ...

Blisters - National Library of Medicine

... one spot. For example, if your shoes don't fit quite right and they keep rubbing part of your foot. Or if you don't wear gloves when you rake leaves and the ...

Cancer Immunotherapy - National Library of Medicine

... these substances made in a lab. Immunotherapy isn't used for all cancers, and the response to ... is immunotherapy used for cancer treatment? Immunotherapy isn't used as often as other cancer treatments, such ...

Cancer in Children - National Library of Medicine

... goes wrong. New cells form when you don't need them, and old cells don't die when they should. The extra cells can ... can be benign or malignant. Benign tumors aren't cancer. Malignant tumors are cancer, and the cancer ...

Carpal Tunnel Syndrome - National Library of Medicine

... gardening, or sports, such as golf. Researchers aren't sure whether long-term typing or computer use ... acupuncture and chiropractic care helpful, but research hasn't shown that these therapies can improve carpal tunnel ...



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