Teen health
Learning Center
Ampullary cancer
Learn more about the causes, diagnosis and treatments for cancer of the ampulla of Vater.
Amniocentesis
Find out about this prenatal test that checks the fluid surrounding the baby during pregnancy.
Amenorrhea
Absence of menstruation (amenorrhea) may be linked to an underlying, treatable problem. Learn about amenorrhea causes and when to seek help.
Alzheimer's: Medicines help manage symptoms and slow decline
Although there's no cure for Alzheimer's disease, certain drugs might help you manage your symptoms and improve your life for a time.
Alzheimer's treatments: What's on the horizon?
Alzheimer's treatments now being studied include an Alzheimer's vaccine and several new medicines.
Alzheimer's stages: How the disease progresses
Alzheimer's stages — common behaviors as the disease progresses.
Alzheimer's prevention: Does it exist?
Alzheimer's prevention: Strategies for staying physically and mentally fit may be most effective.
Alzheimer's and dementia: What's the difference?
The terms 'Alzheimer's disease' and 'dementia' are often used to mean the same thing — but here's the real difference between them.
Allergy medications and pregnancy: What's safe?
Find out what medicines can help you manage allergies while you're pregnant.
Air travel during pregnancy: Is it safe?
Consider these guidelines if you need to fly while you're pregnant.
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