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Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

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Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

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Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.

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Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

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Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

Letters and Numbers Letters and Numbers
Functional MRI Scans These scans of human brains show localized average increases in neural activity Functional MRI Scans These scans of human brains show localized average increases in neural activity
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Correctly written checks. Correctly written checks.
Confusing Lecture, Boring Lecture, Boring Notes, Confusing words Confusing Lecture, Boring Lecture, Boring Notes, Confusing words
Common Root Words and Combining Forms Cont. Common Root Words and Combining Forms Cont.
Video: Role of complement proteins

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