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Did the definition of Alzheimer's disease change?

What the change in the definition of Alzheimer's disease means for you.

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Diet soda: How much is too much?

This type of soda may help cut calories, but there are many other low-calorie choices.

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Dietary fat: Know which to choose

Not all fat is created equal. Find out which type of fat to choose —…

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Dietary fiber: Essential for a healthy diet

Dietary fiber offers many health benefits. Here's how to include more in your diet.

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Dietary supplements for erectile dysfunction: A natural treatment for ED?

Some dietary supplements may help you get and keep an erection that's firm enough for…

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Dietary supplements for weight loss

Do dietary supplements help with weight loss? Are they safe? Get the facts.

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Different types of COVID-19 vaccines: How they work

Find out how different vaccines for the coronavirus cause your body to create antibodies that…

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Diffuse large B-cell lymphoma

Find out more about the symptoms, diagnosis and treatment of this type of non-Hodgkin lymphoma.

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Diffuse midline glioma (DMG)

Diffuse midline glioma, once called diffuse intrinsic pontine glioma, is an aggressive brain cancer that's…

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DiGeorge syndrome (22q11.2 deletion syndrome)

This condition is due to missing part of chromosome 22. It may cause heart issues,…

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Digestion: How long does it take?

The average time to digest a meal is about two days.

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Dilated cardiomyopathy

In this heart muscle disease, the heart's main pumping chamber stretches and can't pump blood…

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Dilation and curettage (D&C)

Learn what to expect during this procedure, how a doctor performs it to remove uterine…

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Diphtheria

This rare but serious bacterial infection can cause organ damage and breathing problems. This disease…

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Discogram

This imaging test helps determine if an irregular disk in your spine is causing your…

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Discolored baby teeth: A cause for concern?

Baby teeth can become discolored for many reasons, including not brushing well enough, taking medicines,…

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Discolored semen: What does it mean?

Find out what causes discolored semen.

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Diskectomy

This surgical procedure removes the damaged portion of a herniated disk in the spine. It's…

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Dislocated shoulder

This shoulder injury, which occurs in the body's most mobile joint, causes the upper arm…

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Dislocation: First aid

What first-aid steps to take for dislocation of a joint.

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Dissociative disorders

These mental health conditions involve experiencing a loss of connection between thoughts, memories, surroundings, actions…

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Diuretics

Diuretics, sometimes called water pills, help remove extra fluid from the body. They're often used…

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Diuretics: A cause of low potassium?

These medicines are often used to treat high blood pressure and swelling. Diuretics may lower…

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Diuretics and gout: What's the connection?

This treatment for high blood pressure can raise the risk of arthritis. Find out why…

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Diverticulitis

This common colon disease develops when small pouches form in the colon wall and become…

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Diverticulitis: Can certain foods trigger an attack?

Contrary to popular belief, no specific foods are known to trigger bouts of this condition.

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Diverticulitis diet

This short-term diet may be part of a treatment plan for bouts of this digestive…

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Dizziness

People feel dizzy for various reasons. How long the feeling lasts and any other symptoms…

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Dizziness: Symptom

What does it mean if you become dizzy? Learn about the various causes and when…

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Do infrared saunas have any health benefits?

How is an infrared sauna different from a traditional sauna? Light provides the heat.

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