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The human body produces and destroys 15 million blood cells every second.
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.
The FDA recognizes 118 routes of administration.
People about to have surgery must tell their health care providers about all supplements they take.
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