Fitness basics
Learning Center
Noonan syndrome
This genetic condition stops typical development in parts of the body. It may include unusual facial features, short height, heart problems or other issues.
Brain stereotactic radiosurgery
This procedure delivers precise radiation therapy to treat brain tumors and other brain conditions.
Endometriosis
Learn about endometriosis, including possible treatments for this condition that can cause pain and sometimes infertility.
Mitral valve disease
Learn more about diseases that affect the valve between the left heart chambers, including mitral valve regurgitation and mitral valve stenosis.
Color blindness
Is it red or is it green? Learn more about what causes color blindness and how to tell whether or not you can distinguish between certain shades of color.
Partial anomalous pulmonary venous return
In this heart problem present at birth, some of the blood vessels of the lungs connect to the wrong places in the heart. Learn when treatment is needed.
Eosinophilic esophagitis
Learn more about the causes and treatment of eosinophilic esophagitis — a digestive disease caused by an allergic reaction.
Flatfeet
A common and usually painless condition, flatfeet occurs when the arches of the feet flatten upon standing, allowing the entire soles to touch the floor.
Headaches and hormones: What's the connection?
Headaches are part of life for many people. Understand how hormones can play a role.
Stages of labor and birth: Baby, it's time!
Find out what happens during the different stages of labor and birth.
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