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Did you know?
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
Did you know?
According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.
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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
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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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Everyone has one nostril that is larger than the other.