Pregnancy problems
Learning Center
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.
Health issues for gay men and other men who have sex with men
Understand health concerns for gay men and other men who have sex with men, and learn how to promote good health.
Health issues for lesbians and other women who have sex with women
Understand health concerns for lesbians and other women who have sex with women, and take steps to promote good health.
Healthy sperm: Improving your fertility
You can take simple steps to have healthy sperm and improve your fertility.
Heart conditions and pregnancy: Know the risks
Here's what to know to protect your heart and have a healthy pregnancy.
Helping baby sleep through the night
Help your baby sleep through the night.
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.
High blood pressure and pregnancy: Know the facts
Concerned about high blood pressure during pregnancy? Find out what you can do to reduce your risk of complications.
High-risk pregnancy: Know what to expect
Find out what to expect during a high-risk pregnancy and learn steps you can take to stay healthy.
How well do face masks protect against COVID-19?
Face masks can help slow the spread of coronavirus disease 2019 (COVID-19). Learn about mask types, which masks to use and how to use them.
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