Fitness basics
Learning Center
Isometric exercises: Good for strength training?
Learn more about isometric exercises that contract a particular muscle or group of muscles.
Warm-mist versus cool-mist humidifier: Which is better for a cold?
Warm-mist and cool-mist humidifiers are equally effective in humidifying the air.
Eczema bleach bath: Can it improve my symptoms?
A diluted bleach bath may help treat chronic eczema.
Yeast infection in men: How can I tell if I have one?
Yeast infections can occur in men, causing inflammation of the penis (balanitis). Learn what signs and symptoms could mean you have a yeast infection.
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.
HPV infection: A cause of cancer in men?
Learn what types of cancer HPV can cause in men and how you can reduce your risk.
Fainting during urination (micturition syncope): What causes it?
Fainting during or immediately after urination, called micturition syncope, is a rare occurrence in healthy individuals.
Bladder infection in men
Although women are more likely to get bladder infections, men can get them, too. Learn about signs and symptoms and what could put you at risk.
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.
How do COVID-19 antibody tests differ from diagnostic tests?
Antibody testing shows whether you've had the COVID-19 virus in the past. It's not the same as testing to see whether you have the virus now.
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