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Did you know?
Everyone has one nostril that is larger than the other.
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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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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.