One way to prevent muscle cramps is to get enough of these nutrients: potassium, sodium, calcium, and magnesium. They’re called electrolytes, and this WebMD slideshow can help you find them in these ...

Catatonia is often dramatically portrayed as a condition that belongs in horror movies, presenting someone as completely ...

A dental crown is a tooth-shaped "cap" that is placed over a tooth -- to cover the tooth to restore its shape and size, strength, and improve its appearance. The crowns, when cemented into place, ...

‌You may have heard toddlers mimic noises and words when they hear others speak. This repetition or imitation of sounds, phrases, or words is called echolalia. The term comes from the Greek words ...

"Encephalopathy" means damage or disease that affects the brain. It happens when there’s been a change in the way your brain works or a change in your body that affects your brain. Those changes lead ...

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Even though the experience of pain varies from one person to the next, it is possible to categorize the different types of pain. Neuropathic pain is often described as a shooting or burning pain. It ...

An echocardiogram is a test that shows detailed pictures of your heart. There are many types, and they're performed in different ways. (Photo credit: E+/Getty Images) An echocardiogram is a test that ...

Sometimes a bone fracture is the first way you know you have osteoporosis. Fractures can happen in any bone, but are most common in your hip, wrist, and spine. It doesn't take a fall to cause a ...

Losing weight after 40 can be hard, especially if you don’t have a lot of time to exercise and eat right. But some simple strategies can make it easier to slim down and keep the weight off. WebMD's ...

Rheumatoid nodules are firm lumps under the skin. They tend to form close to joints in people affected by rheumatoid arthritis. How big are they? These bumps can be as large as a walnut or as small as ...

Psychotic depression is a subtype of major depression that occurs when a severe depressive illness includes some form of psychosis. The psychosis could be hallucinations (such as hearing a voice ...