First trimester
Learning Center
How to measure your respiratory rate
Learn how to accurately measure your breathing rate, which is also known as your respiratory rate.
COVID-19: Who's at higher risk of serious symptoms?
Advanced age and some health conditions can raise the risk of serious COVID-19 (coronavirus disease 2019) illness.
COVID-19 vaccines: Get the facts
Find out about the COVID-19 vaccines, the benefits of COVID-19 vaccination and the possible side effects.
Melanoma pictures to help identify skin cancer
See pictures of this type of skin cancer to know what skin changes might cause worry.
Pregnancy weight gain: What's healthy?
Appropriate pregnancy weight gain is crucial for your baby's health. Know how much to gain and how to make smart choices.
Twin pregnancy: What twins or multiples mean for mom
Twin pregnancy or other multiples? Here's help taking care of yourself — and your babies.
How to take your temperature
Learn how to get an accurate temperature reading at home, using common types of thermometers.
Treating COVID-19 at home: Care tips for you and others
COVID-19 can sometimes be treated at home. Understand emergency symptoms to watch for, how to protect others if you're ill, how to protect yourself while caring for a sick loved one and other coping tips.
Safe outdoor activities during the COVID-19 pandemic
Looking for fun summertime activities you can enjoy safely during the COVID-19 pandemic? Here are several options to try.
How your brain works
Which part of your brain does what? Take a tour.
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