Healthy diets
Learning Center
Early miscarriage: Is stress a factor?
Early miscarriage is usually caused by an abnormality with the baby — not maternal stress.
Does soy really affect breast cancer risk?
Soy foods reduce the risk of breast cancer, but more research is needed to determine whether soy supplements are equally beneficial.
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.
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.
Polypill: Does it treat heart disease?
This combination pill contains small doses of several commonly prescribed heart disease medicines.
Loss of sex drive in men: Natural with aging?
Age-related loss of sex drive is normal, but sometimes an underlying condition is at play.
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.
Vitamin D deficiency
What are the risks of too little vitamin D?
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.
Unusual COVID-19 symptoms: What are they?
COVID-19 can cause a wide variety of symptoms, some more common than others. Learn about how COVID-19 can make you feel.
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