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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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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.
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Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.
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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.