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Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

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If all the neurons in the human body were lined up, they would stretch more than 600 miles.

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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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The average office desk has 400 times more bacteria on it than a toilet.

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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

Gossip and ridicule increase the status insecurity of this time of life. Gossip and ridicule increase the status insecurity of this time of life.
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Video: Stroke volume - contractility definition

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