Sex and aging
Learning Center
Coronavirus disease 2019 (COVID-19)
Coronavirus disease 2019 (COVID-19) is an illness caused by the virus SARS-CoV-2. Learn more about the symptoms, risks and ways to protect yourself.
Ependymoma
Learn about this tumor that forms from ependymal cells in the brain and spinal cord. Treatments include surgery, radiation therapy and chemotherapy.
Congenital myasthenic syndromes
These rare hereditary conditions result in a problem in nerve stimulation, causing muscle weakness that worsens with physical activity.
Glioma
Gliomas are the most common brain tumors in adults. Learn more about diagnosis and treatment, including innovative research to find new therapies.
Dermatitis
Learn about the symptoms, causes and treatments of this itchy skin condition that affects children and adults, and about how moisturizers help prevent it.
Cleft lip and cleft palate
Surgery can fix openings or splits in the upper lip, or the roof of the mouth (palate), or both types of these birth defects.
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.
Infant reflux
Learn more about when a baby spits up food or liquid. Most babies outgrow this common and messy condition by the age of 18 months.
Progeria
This genetic disorder is extremely rare and progressive. It causes children to age rapidly, beginning in their first two years of life.
Toxoplasmosis
Learn about symptoms, causes, treatment and prevention of this parasitic infection that can cause severe disease.
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