Nutrition basics
Learning Center
Stress symptoms: Effects on your body and behavior
Learn how stress symptoms can affect your health so that you can take action.
Stages of labor and birth: Baby, it's time!
Find out what happens during the different stages of labor and birth.
Sperm: How long do they live after ejaculation?
After ejaculation, the life span of sperm depends on the circumstances.
Sodium: How to tame your salt habit
Find out which foods have lots of this mineral and get tips on how to cut back.
Smokeless tobacco products
Learn the risks of using products such as chewing tobacco, snuff and snus.
Small bowel prolapse (enterocele)
Learn more about this condition also called a vaginal hernia that happens when the small bowel pushes down onto the top of the vagina.
Silicone breast implants: What happens if they rupture?
Understand the problems that may happen when a silicone breast implant leaks.
Silent heart attack: What are the risks?
This type of heart attack occurs with few, if any, symptoms. Find out more.
Signs of labor: Know what to expect
Learn what you can expect as your due date approaches and your body prepares for delivery.
Shingles vaccine: Can I transmit the vaccine virus to others?
A shingles vaccine uses only part of the varicella-zoster virus, so you can't infect others.
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