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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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There are more bacteria in your mouth than there are people in the world.
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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
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There are 60,000 miles of blood vessels in every adult human.
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Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.