Fitness basics
Learning Center
Brachial plexus injury
Learn about these nerve injuries that usually result from auto or motorcycle accidents, and find out which procedures can help restore arm function.
Anxiety disorders
Learn the symptoms of this mental health condition, and ways to manage worry and fear that interfere with your daily activities.
Personality disorders
A person with this mental health condition thinks, acts and behaves in a rigid pattern that's not healthy. It's hard to understand and relate to others.
Nightmare disorder
Nightmare disorder involves disturbing or scary dreams that awaken you, causing distress or preventing adequate sleep.
Keratitis
An inflamed, red eye can be a minor nuisance — but sometimes it means a more serious problem. Find out about symptoms, treatment and prevention for this potentially dangerous eye condition.
Pericarditis
Inflammation of the tissue surrounding the heart can cause sharp chest pain and other symptoms. Know how pericarditis is diagnosed and treated.
Allergies
Allergy symptoms can range from mild to severe, even life-threatening. Most allergies can't be cured, but treatments can help.
IgA nephropathy (Berger disease)
This disease causes kidney inflammation that, over time, can interfere with the kidneys' ability to filter waste from the blood.
Rheumatic fever
Learn about this complication of strep throat and scarlet fever and what you can do to prevent it.
Eosinophilic esophagitis
Learn more about the causes and treatment of eosinophilic esophagitis — a digestive disease caused by an allergic reaction.
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