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Did you know?
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
Did you know?
Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.
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Excessive alcohol use costs the country approximately $235 billion every year.
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Vaccines prevent between 2.5 and 4 million deaths every year.
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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.