Medications
Learning Center
Abnormal sperm morphology: What does it mean?
Abnormal sperm morphology may be a contributing factor in male infertility.
Active surveillance for prostate cancer
Learn about why doctors may recommend active surveillance for prostate cancer and what to expect.
Adrenal fatigue: What causes it?
Adrenal fatigue is a term used to describe a group of symptoms that aren't specific. It's not an official medical diagnosis.
Adult bed-wetting: A concern?
Adult bed-wetting is uncommon and requires evaluation by a doctor. Learn about possible causes.
Air travel with infant: Is it safe?
Planning for air travel with an infant? Know how air travel can affect a newborn's ears and breathing, and what you can do to keep your baby comfortable.
Albinism
In this group of inherited disorders, the body makes little or no melanin, a pigment that determines hair, skin and eye color and vision development.
Allergies and asthma: They often occur together
Allergies and asthma? Find out how to control both conditions.
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.
Angelman syndrome
Learn about this genetic disorder that causes developmental delays, problems with speech and other symptoms.
Antibiotics and alcohol
Alcohol doesn't make antibiotics less effective. But it's still a good idea not to drink alcohol while taking antibiotics.
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