Aerobic exercise
Learning Center
Water breaking: Understand this sign of labor
Learn how to tell this sign of labor and what do next.
Water retention: Relieve this premenstrual symptom
Find out what's behind premenstrual water retention and what treatments might lessen discomfort.
What are opioids and why are they dangerous?
Opioids are a broad group of medicines used to relieve pain. Although these medicines are effective, they can lead to addiction. Take them only as directed.
What are superbugs and how can I protect myself from infection?
Some bacteria and other germs are resistant to most types of antibiotics and medicines that treat them. Find out the risks and how to prevent infections.
When to brush your teeth
When should you brush your teeth? Learn how to protect your oral health.
Whole-body vibration: An effective workout?
Whole-body vibration — Don't give up regular exercise and a healthy diet.
Why isn't there a hepatitis C vaccine?
Hepatitis C vaccine development is far from straightforward, but experimental vaccines are under study.
Women's sexual health: Talking about your sexual needs
Women's sexual health — Tips for talking about your sexual needs and achieving fulfillment.
Working during pregnancy: Do's and don'ts
Working during pregnancy? Here's how to have a healthy, productive nine months on the job.
X-ray during pregnancy: Is it safe?
Learn when an X-ray during pregnancy might cause harm and how to avoid it.
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