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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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
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There are 60,000 miles of blood vessels in every adult human.
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Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.