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If all the neurons in the human body were lined up, they would stretch more than 600 miles.
There are more sensory neurons in the tongue than in any other part of the body.
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
Approximately 25% of all reported medication errors result from some kind of name confusion.
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