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Learning Center
Coronavirus disease 2019 (COVID-19)
Coronavirus disease 2019 (COVID-19) is an illness caused by the virus SARS-CoV-2. Learn more about the symptoms, risks and ways to protect yourself.
Can vitamin D protect against coronavirus disease 2019 (COVID-19)?
Find out what the research says about vitamin D and coronavirus disease 2019 (COVID-19).
Tips for choosing and using canes
A cane can improve balance and mobility. Learn about the choices that are available and how to use a cane correctly.
Mayo Clinic Minute: Why the risk of frostbite is greater than you think
Learn why the risk of frostbite is greater than you think.
Hemolytic uremic syndrome (HUS)
Damage to the small blood vessels in the kidneys can cause clots that clog the organ's filtering system. This can lead to life-threatening kidney failure.
Blood donation
Find out what to expect during blood donation and how your blood will be used to help others.
Calcium supplements: A risk factor for heart attack?
Learn about the possible link between calcium supplements and heart attacks.
Testosterone therapy: Potential benefits and risks as you age
Testosterone therapy — Explore the potential benefits and risks of increasing your testosterone level.
COVID-19 infections by race: What's behind the health disparities?
Understand how underlying health problems, the places where people live and work, and racism can affect who becomes severely ill with COVID-19.
Sensitive teeth: What treatments are available?
Know what causes sensitive teeth and learn about effective treatments.
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