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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.
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Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.
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The FDA recognizes 118 routes of administration.
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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.