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Disease

Lewy body dementia

This common dementia is caused by a buildup of proteins in the brain. It affects thinking, memory and movement.
Disease

Reactive arthritis

This joint pain is triggered by an infection in another part of the body — often the intestines, genitals or urinary tract.
Disease

Cancer

Find out the basics about cancer, including symptoms, causes and treatments. Learn steps you can take to prevent cancer.
Disease

Lung cancer

Learn about the symptoms, diagnosis and treatment for this deadly form of cancer.
Disease

Sudden cardiac arrest

This medical emergency involves sudden loss of all heart activity. Learn how fast, appropriate care may help prevent death.
Disease

Rheumatic fever

Learn about this complication of strep throat and scarlet fever and what you can do to prevent it.
Disease

Enlarged heart

Cardiomegaly is another word for this sign or symptom that may be caused by certain heart conditions or even pregnancy. Know how it's treated.
Disease

Metachromatic leukodystrophy

This rare genetic condition causes fatty substances to build up in the brain and nervous system. This results in loss of nerve function that worsens over time.
Disease

Angelman syndrome

Learn about this genetic condition that causes developmental delays, trouble with speech and other symptoms.
Disease

Chronic granulomatous disease

Learn about this inherited disease, usually diagnosed in childhood, that makes it difficult for your body to fight infections.
Disease

Polycystic kidney disease

Learn how treatments and lifestyle changes might help reduce kidney damage from this disease.
Disease

Colic

Consoling a baby who cries a lot for no known reason is tough. Learn ways to care for the infant and cope with the stress.
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