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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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.
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.