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Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.