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Learning Center
Symptoms of pregnancy: What happens first
Are you pregnant? Tender breasts, nausea and fatigue are just a few early symptoms of pregnancy. Find out about these and less obvious pregnancy signs.
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.
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.
Smokeless tobacco products
Learn the risks of using products such as chewing tobacco, snuff and snus.
Small vessel disease
Also called coronary microvascular disease, this type of heart disease can be hard to detect. Know the symptoms and how it's diagnosed and treated.
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 health effects of ruptured silicone breast implants.
Silent heart attack: What are the risks?
This type of heart attack occurs with few, if any, symptoms. Find out more.
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