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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
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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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All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.
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There are approximately 3 million unintended pregnancies in the United States each year.
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There are more sensory neurons in the tongue than in any other part of the body.