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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."
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
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Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.
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Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.