Fitness basics
Learning Center
Fitness training: Elements of a well-rounded routine
Is your fitness training program complete? Here's help to make sure you have all the basics in your program.
Parvovirus infection
Learn more about the symptoms, causes, treatment and prevention of this common childhood infection — sometimes called slapped-cheek disease.
Pinworm infection
Learn more about the symptoms, treatment and prevention of this common type of intestinal worm infection.
Pulmonary valve stenosis
When the valve between the heart and lungs is narrowed, blood flow slows. Know the symptoms of this type of valve disease and how it's treated.
Roseola
Learn about the causes of and home-care tips for this common viral infection that often affects children by age 2, causing a high fever followed by a rash.
Rubella
Learn more about the symptoms and prevention of this contagious viral infection best known for its distinctive red rash.
Tonsillitis
Learn about the causes and treatment of tonsillitis, a common cause of sore throat in children.
Traumatic brain injury
If a head injury causes a mild traumatic brain injury, long-term problems are rare. But a severe injury can mean significant problems.
Umbilical hernia
Learn about this condition in which your intestines create a bulge near your navel.
Viral gastroenteritis (stomach flu)
This condition, often called stomach flu, is usually harmless, except for infants and people with immunosuppression. Symptoms can usually be managed.
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