The human body produces and destroys 15 million blood cells every second.
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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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.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.