The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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The human body produces and destroys 15 million blood cells every second.
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Green tea is able to stop the scent of garlic or onion from causing bad breath.
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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.
Phenotypic and molecular markers mapped on human chromosome 1
human anatomy
Time Line of Human History From Upper Paleolithic Period to the Present