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Did you know?
Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.
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Blood is approximately twice as thick as water because of the cells and other components found in it.
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Your heart beats over 36 million times a year.
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Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.
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The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.