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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.
There are more nerve cells in one human brain than there are stars in the Milky Way.
Excessive alcohol use costs the country approximately $235 billion every year.
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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