Nutrition basics
Learning Center
Agoraphobia
Agoraphobia is an anxiety disorder in which you fear and avoid public places or situations where you might feel panicked, trapped, helpless or embarrassed.
Aging: What to expect
Understand the natural changes that come with aging.
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.
Aerobic exercise: Top 10 reasons to get physical
Need inspiration to work out? Consider the top 10 benefits of aerobic exercise.
Aerobic exercise: How to warm up and cool down
Learn how to warm up and cool down the safe way.
Adult bed-wetting: A concern?
Adult bed-wetting is uncommon and requires evaluation by a doctor. Learn about possible causes.
Adult attention-deficit/hyperactivity disorder (ADHD)
This mental health disorder includes a combination of persistent problems, such as difficulty paying attention, hyperactivity and impulsive behavior.
Adult Still disease
Learn about symptoms, complications and treatment of this inflammatory disorder.
Adrenoleukodystrophy
Find out about diagnosis and treatment of adrenoleukodystrophy — a hereditary disorder that affects the brain, nervous system and adrenal gland.
Adrenalectomy
Learn what to expect from this surgery that involves removing an adrenal gland.
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