Nutritional supplements
Learning Center
Calcium and calcium supplements: Achieving the right balance
Considering calcium supplements? First figure out how much calcium you need. Then weigh the pros and cons of supplements.
Hand-washing: Do's and don'ts
Done properly, hand-washing is a simple way to prevent the spread of germs and avoid getting sick.
Headaches and hormones: What's the connection?
Headaches are part of life for many people. Understand how hormones can play a role.
Asthma inhalers: Which one's right for you?
With so many options, choosing an asthma inhaler can be confusing. Use this helpful guide to find the one that works best for you.
COVID-19 in babies and children
Know the symptoms of COVID-19 in children, what to do if your child appears sick and how to keep your family healthy.
Children and gender identity: Supporting your child
Learn how to talk to children about their internal sense of gender. Also find out how to support their gender expression and advocate for them.
How you hear
Your ears enable you to gather and interpret sounds from the world around you.
Guide to different tick species and the diseases they carry
Learn about different tick species and some of the diseases they may carry.
Thermometers: Understand the options
Thermometers come in a variety of styles. Find out the pros and cons of different types of thermometers.
Cast care: Do's and don'ts
Find out more about tips for keeping a cast safe — and your child comfortable — while an injury heals.
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