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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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Your heart beats over 36 million times a 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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Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.
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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%