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Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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People about to have surgery must tell their health care providers about all supplements they take.
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The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.
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There are 60,000 miles of blood vessels in every adult human.