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Did you know?
Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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The longest a person has survived after a heart transplant is 24 years.
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There are more sensory neurons in the tongue than in any other part of the body.
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Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.