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Covers iron deficiency anemia. Explains role of iron in making hemoglobin, part of red blood cells. Covers causes and symptoms

Styes and chalazia are lumps in or along the edge of an eyelid. They may be painful or annoying, but they are rarely serious. Most

What is Down syndrome? Down syndrome is a genetic condition. It affects childhood growth and development. People who have it may

Radioactive iodine, given in a capsule or liquid form, is absorbed and concentrated by the thyroid gland. The treatment destroys

Discusses mononucleosis (also called mono or the kissing disease) caused by Epstein-Barr virus (EBV). Covers symptoms including

As people get older, their lower eyelids sometimes start to droop away from the eyeball. Drooping is the result of reduced muscle

Obsessive-compulsive disorder (OCD) is a mental health condition that causes repeated unwanted thoughts. The thoughts are hard to

Inguinal hernia repair is a type of surgery. An inguinal hernia is a bulge under the skin in your groin. It happens when there is

Pericarditis is swelling and irritation of the pericardium, which is the sac that surrounds your heart. Pericarditis usually doesn

Covers causes and symptoms of seasonal affective disorder (SAD), also known as winter depression. Includes info on bright light