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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

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Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

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The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

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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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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

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