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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.
In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
Blood is approximately twice as thick as water because of the cells and other components found in it.