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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.
In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.