Fitness basics
Learning Center
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.
Outpatient joint replacement: Is it a safe option?
Joint replacement of the hip, knee and shoulder can be done safely as outpatient surgery. Most people can go home the same day as the procedure.
Colon cancer screening: At what age can you stop?
Some groups recommend people over 75 may consider stopping colon cancer screening. Not everyone agrees. Learn about your colon cancer screening options.
Bipolar disorder in children: Is it possible?
Bipolar disorder in children and teenagers is possible. Finding it early and treating it can help.
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.
Cervical dysplasia: Is it cancer?
Learn what to expect if a Pap test shows cells that look different from typical cervical cells. Follow-up tests might include HPV testing and colposcopy.
Isometric exercises: Good for strength training?
Learn more about isometric exercises that contract a particular muscle or group of muscles.
Prostate cancer metastasis: Where does prostate cancer spread?
Prostate cancer can spread (metastasize) just about anywhere in the body, but it's most likely to spread to the lymph nodes and bones.
Fainting during urination (micturition syncope): What causes it?
Fainting during or immediately after urination, called micturition syncope, is a rare occurrence in healthy individuals.
Is a home sperm test useful?
Using a home sperm test to check your fertility may not provide a clear answer.
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