Elementary students
Learning Center
Genetic testing
Genetic testing: Learn why it's done, how to prepare and what to expect from diagnostic tests, carrier tests, prenatal tests and newborn screening.
Green stool
Learn about the possible causes of green stools in adults and infants.
Group B strep disease
This common bacterium, usually harmless in healthy adults, can cause serious illness in newborns and adults with certain chronic conditions, such as diabetes.
Heart arrhythmia
Learn about common heart rhythm disorders that can cause your heart to beat too fast, too slow or irregularly.
Heart disease
Learn about symptoms, causes and treatment of cardiovascular disease, a term describing a wide range of conditions that can affect the heart.
Heart murmurs
An irregular heart sound may be harmless or worrisome. Know the causes of heart murmurs and when treatment is needed.
Heart valve disease
Learn about this condition in which one or more of the heart valves doesn't work properly.
Heat rash
Learn more about the symptoms, causes and treatment of this heat-related problem of the skin that affects people of all ages.
Helping baby sleep through the night
Help your baby sleep through the night.
Hemangioma
This red mark on a baby's skin looks like a rubbery bump or flat red mark and is made up of extra blood vessels in the skin. It generally goes away by age 10. Learn more about its causes and treatment.
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