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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
The familiar sounds of your heart are made by the heart's valves as they open and close.
The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."
Your heart beats over 36 million times a year.
Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.
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