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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
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Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
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Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.