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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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The familiar sounds of your heart are made by the heart's valves as they open and close.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.
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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.