Quit-smoking basics
Learning Center
Quit-smoking products: Boost your chance of success
Many quit-smoking products are available and using one or more can greatly increase your chance of success. Check out your options.
Easy bruising: Why does it happen?
Get the facts about easy bruising. Learn about causes and find out when it's a sign of a problem.
Home birth: Know the pros and cons
Understand the possible risks and how to plan and prepare for a home birth.
Smokeless tobacco products
Learn the risks of using products such as chewing tobacco, snuff and snus.
Forgiveness: Letting go of grudges and bitterness
Forgiveness and letting go can lead to healing and peace.
Triglycerides: Why do they matter?
Like cholesterol, triglycerides can cause health problems. Here's how to lower your triglycerides.
Alzheimer's stages: How the disease progresses
Alzheimer's stages — common behaviors as the disease progresses.
Transgender facts
Know the basics about sex and gender, including common terms and definitions.
Wisdom teeth removal: When is it necessary?
You may not need your wisdom teeth taken out if they're healthy and in the right place. But if they cause problems, your dentist may suggest removing them.
What is chikungunya fever, and should I be worried?
Learn more about this mosquito-borne virus — found in Africa, Asia, India, and parts of Europe and the Americas — that causes fever and severe joint pain.
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