Aerobic exercise
Learning Center
Aerobic exercise: How to warm up and cool down
Learn how to warm up and cool down the safe way.
Aerobic exercise: Top 10 reasons to get physical
Need inspiration to work out? Consider the top 10 benefits of aerobic exercise.
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 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.
Alcohol use: Weighing risks and benefits
Drinking alcohol in any amount is a health risk that increases with each drink you have. The risk peaks with heavy drinking, including binge drinking, which carries serious health risks.
Allergies and asthma: They often occur together
Allergies and asthma? Find out how to control both conditions.
Allergy-proof your home
Here's a room-by-room guide to reducing allergy-triggering dust, mold, pollen and pet dander in your home.
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.
Alzheimer's disease
Understand more about this brain disorder that's the most common cause of dementia. Also learn about new tests and medicines on the market.
Alzheimer's prevention: Does it exist?
Alzheimer's prevention: Strategies for staying physically and mentally fit may be most effective.
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