|
|
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
On average, the stomach produces 2 L of hydrochloric acid per day.
Medication errors are three times higher among children and infants than with adults.
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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.