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Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.
Did you know?
The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).
Did you know?
The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
Did you know?
In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.