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According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.
Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
There are more sensory neurons in the tongue than in any other part of the body.
Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.