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The familiar sounds of your heart are made by the heart's valves as they open and close.
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Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.
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Approximately 25% of all reported medication errors result from some kind of name confusion.
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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
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About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.