Healthy diets
Learning Center
COVID-19 travel advice
Concerned about COVID-19 when you travel? Follow these tips for safely flying, driving and staying at hotels.
COVID-19 infections by race: What's behind the health disparities?
Understand how underlying health conditions, the places where people live and work, and racism can affect who becomes seriously ill with COVID-19.
COVID-19 drugs: Are there any that work?
Medicine can help people who are at risk of, diagnosed with, or have symptoms of COVID-19.
COVID-19 diagnostic testing
Find out how to test to learn if you're infected with the virus that causes COVID-19.
COVID-19 antibody testing
Learn how COVID-19 antibody testing is done to find out if you've had a past infection with SARS-CoV-2, the virus that causes coronavirus disease 2019.
Butter vs. margarine: Which is better for my heart?
Margarine usually tops butter for heart health. But not all margarines are created equal.
Bullous pemphigoid
Learn about the symptoms, treatment and self-care strategies for this blistery skin condition that affects older adults.
Bronchitis
Bronchitis is an inflammation of the tubes that carry air to and from the lungs. Coughing and shortness of breath are the major symptoms.
Broken collarbone
This common injury is usually the result of falling, playing sports or being in a traffic accident.
Bone metastasis
Learn about the symptoms and causes of cancer that spreads to the bones. Find out about treatments, including medications, radiation and surgery.
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