Fitness basics
Learning Center
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.
Renal diet for vegetarians: What about protein?
Although a kidney diet limits protein, you still must eat some protein every day.
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.
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.
Hemorrhoids during pregnancy: What's the best treatment?
Know how to relieve painful, swollen veins in the anus and rectum during pregnancy.
How to treat baby eczema
Learn simple remedies to easing your baby's discomfort from the pain and irritation of this skin rash.
Ozone air purifiers: Can they improve asthma symptoms?
Ozone air purifiers don't reduce asthma symptoms. In fact, they can make asthma worse.
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.
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.
Prostatitis: Can sexual activity make it worse?
Some men with prostatitis have pain with ejaculation or sexual activity.
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