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Did you know?
The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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People about to have surgery must tell their health care providers about all supplements they take.
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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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The familiar sounds of your heart are made by the heart's valves as they open and close.