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Did you know?
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
Did you know?
The human body produces and destroys 15 million blood cells every second.
Did you know?
On average, the stomach produces 2 L of hydrochloric acid per day.
Did you know?
Medication errors are more common among seriously ill patients than with those with minor conditions.
Did you know?
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.