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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
The familiar sounds of your heart are made by the heart's valves as they open and close.
More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.
People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
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