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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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In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.
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The horizontal fraction bar was introduced by the Arabs.
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Your heart beats over 36 million times a year.
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You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.