Men's sexual health
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Acid reflux and GERD: The same thing?
Acid reflux and GERD are closely related, but the terms aren't necessarily interchangeable.
Actinic keratosis
Find out more about this skin condition that causes a rough, scaly patch after years of ultraviolet exposure from the sun or indoor tanning.
Acute bronchitis: Is it contagious?
Most cases of acute bronchitis are caused by viruses and are contagious. Learn ways to reduce your risk of catching viruses that can cause bronchitis.
Acute coronary syndrome
Know the symptoms, causes and treatment of this heart condition. The term refers to many conditions that cause sudden, low blood flow to the heart.
Adenomyosis
Displaced endometrial tissue from adenomyosis can cause an enlarged uterus and painful, heavy periods.
Age spots (liver spots)
Learn more about the harmless dark spots on your skin that tend to appear as you age, especially in areas exposed to the sun. Treatment is available.
Air travel during pregnancy: Is it safe?
Consider these guidelines if you need to fly while you're pregnant.
Allergies and asthma: They often occur together
Allergies and asthma? Find out how to control both conditions.
Allergy medications and pregnancy: What's safe?
Find out what medicines can help you manage allergies while you're pregnant.
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.
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