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Did you know?
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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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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On average, the stomach produces 2 L of hydrochloric acid per day.
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Asthma cases in Americans are about 75% higher today than they were in 1980.
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Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.