Teen health
Learning Center
Fetal development: The 2nd trimester
Fetal development progresses rapidly in the second trimester. Check out the weekly changes.
Heart conditions and pregnancy: Know the risks
Here's what to know to protect your heart and have a healthy pregnancy.
Types of psoriasis
Learn to identify types of psoriasis, such as guttate psoriasis and scalp psoriasis, by appearance.
Women's sexual health: Talking about your sexual needs
Women's sexual health — Tips for talking about your sexual needs and achieving fulfillment.
Vagina: What's typical, what's not
Vaginal health is important. Use this information to protect your vaginal health and spot potential problems.
Surgery for stress urinary incontinence in women
Learn what's involved in surgery to treat stress urinary incontinence, including risks, benefits and other factors to consider before making a decision.
Prenatal vitamins: Why they matter, how to choose
Prenatal vitamins are an important part of pregnancy nutrition. Here's why.
Labor and delivery: Pain medications
Understand the pros and cons of various labor and delivery pain medications.
Pregnancy diet: Focus on these essential nutrients
Find out how to pack your pregnancy diet with essential nutrients, including folate, iron and vitamin D.
How you hear
Your ears enable you to gather and interpret sounds from the world around you.
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