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Asthma cases in Americans are about 75% higher today than they were in 1980.
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As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.
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Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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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.