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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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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.
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The horizontal fraction bar was introduced by the Arabs.
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Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).