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Did you know?
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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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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There are more sensory neurons in the tongue than in any other part of the body.
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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.