Nutrition basics
Learning Center
Different types of COVID-19 vaccines: How they work
Find out how different COVID-19 vaccines cause your body to create antibodies that will fight the COVID-19 virus.
Herd immunity and COVID-19: What you need to know
To protect groups of people over time, it helps to know what level of recovery or vaccination in a population makes it hard for a germ to spread.
COVID-19, cold, allergies and the flu: What are the differences?
Knowing if you have COVID-19, a cold, the flu or seasonal allergies isn't easy. Find out about the differences between these illnesses.
Hearing aids: How to choose the right one
Find out how to choose the right hearing aid.
Insulin and weight gain: Keep the pounds off
Understand why weight gain is linked to insulin treatment, and find out how to dodge those extra pounds while still managing your blood sugar.
How to take your temperature
Learn how to get an accurate temperature reading at home, using common types of thermometers.
Tips for choosing and using canes
A cane can improve balance and mobility. Learn about the choices that are available and how to use a cane correctly.
Asthma treatment: 3 steps to better asthma control
Follow this three-step approach to keep symptoms under control and prevent attacks.
Asthma: Steps in testing and diagnosis
Think you or your child might have asthma? Here's what's involved in making a diagnosis.
Herbal supplements and heart medicines may not mix
Some herbal supplements can have dangerous interactions with heart medications.
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