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Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

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Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

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Illicit drug use costs the United States approximately $181 billion every year.

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There are 20 feet of blood vessels in each square inch of human skin.

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About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Eyespots on the wings of the Citrus Swallowtail (Papilio demodocus) are part of its defense Eyespots on the wings of the Citrus Swallowtail (Papilio demodocus) are part of its defense
Cellular Defense Mechanism Cellular Defense Mechanism
Defense Mechanisms Cont. Defense Mechanisms Cont.
Defense Mechanisms Cont. Defense Mechanisms Cont.
Vaillant's Six Levels of Defense Mechanisms Vaillant's Six Levels of Defense Mechanisms
Defense and counter defense. Defense and counter defense.
Video: Bulk flow - factors that influence bulk flow

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