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The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

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The horizontal fraction bar was introduced by the Arabs.

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Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.

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Blood is approximately twice as thick as water because of the cells and other components found in it.

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The human body produces and destroys 15 million blood cells every second.

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