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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.
Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
If all the neurons in the human body were lined up, they would stretch more than 600 miles.
More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.
Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.