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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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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
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The longest a person has survived after a heart transplant is 24 years.
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There are 20 feet of blood vessels in each square inch of human skin.
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The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.