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Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

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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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Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

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Your heart beats over 36 million times a year.

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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

A tracheotomy tube in place, inserted through an opening in the front of the neck and anchored withi A tracheotomy tube in place, inserted through an opening in the front of the neck and anchored withi
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Clear the thigh with long strokes. Start superior to the patella; place your full flat hand and ... Clear the thigh with long strokes. Start superior to the patella; place your full flat hand and ...
Video: Cellular defenses (natural killer cells, phagocyte types & process of phagocytosis)

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