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Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
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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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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
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Your heart beats over 36 million times a year.
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It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.