Fitness basics
Learning Center
Did the definition of Alzheimer's disease change?
What the change in the research definition of Alzheimer's disease means for you.
Denture care: How do I clean dentures?
Follow these best practices to keep your removable partial or full dentures clean, free from stains and comfortable.
Coughing more after quitting smoking: What's the deal?
If you cough more than usual after you give up cigarettes, find out what it might mean and when to call the doctor.
Cervical length: Why does it matter during pregnancy?
If cervical length during pregnancy shortens too soon, there might be an increased risk of preterm labor.
Cellulitis: How to prevent recurrent episodes
Learn to treat and prevent recurrent cellulitis.
Can vitamin D protect against coronavirus disease 2019 (COVID-19)?
Find out what the research says about links between this key vitamin and the widespread viral infection.
Calcium supplements: A risk factor for heart attack?
Learn about the possible link between calcium supplements and heart attacks.
COVID-19 variants: What's the concern?
The virus that causes COVID-19 has changed over time, which has affected prevention, diagnosis and treatment of COVID-19.
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.
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