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Did you know?
Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.
Did you know?
More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
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Medication errors are more common among seriously ill patients than with those with minor conditions.
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There are 60,000 miles of blood vessels in every adult human.
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Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.