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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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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.
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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.