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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
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To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.
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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.