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Did you know?
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.
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During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.
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Approximately 25% of all reported medication errors result from some kind of name confusion.
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There are 60,000 miles of blood vessels in every adult human.