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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
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The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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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.