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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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Heart Disease in Women - National Library of Medicine

... blood flow Heart failure - when your heart can't pump enough blood to meet your body's needs ... have "silent" heart disease, meaning that they don't have symptoms. Health care providers may not recognize ...

Heart Failure - National Library of Medicine

... failure? Heart failure means that your heart can't pump enough oxygen-rich blood to meet your body's needs. Heart failure doesn't mean that your heart has stopped or is ...

Sjogren's Syndrome - National Library of Medicine

... system attacks healthy tissues and organs. Researchers don't know for sure what causes the immune system ... secondary form of Sjogren's syndrome. People who don't have another autoimmune disease have a primary form ...

Antidepressants - National Library of Medicine

... usually prescribe newer antidepressants first because they don't cause as many side effects as older types. ... Atypical antidepressants, which are newer antidepressants that don't fit into the other groups If these antidepressants ...

Ataxia Telangiectasia - National Library of Medicine

Ataxia-telangiectasia (A-T) is a rare, inherited disease. It affects the nervous system, immune system, and other body systems. Symptoms appear in ... Delayed physical and sexual development People with A-T have an increased risk of developing diabetes and ...

Bullying and Cyberbullying - National Library of Medicine

... Have depression, anxiety, or low self-esteem Don't have many friends or are less popular Don't socialize well with others Have an intellectual or ... serious problem that causes harm. And it doesn't just hurt the person who is being bullied; ...

Cancer - National Library of Medicine

... wrong. New cells grow even when you don't need them, and old cells don't die when they should. These extra cells can ... can be benign or malignant. Benign tumors aren't cancer while malignant ones are. Cells from malignant ...

Colonoscopy - National Library of Medicine

... when they are easier to treat. If aren't at higher risk for colorectal cancer, your health ... usually along with pain medicine, so you won't be awake or feel pain during the procedure. ...

Diabetes Type 2 - National Library of Medicine

... energy. If you have diabetes, your body doesn't make enough insulin or doesn't use insulin well. The glucose then stays in ... is a condition in which your cells don't respond normally to insulin. As a result, your ...

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 ...