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Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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.
About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
There are approximately 3 million unintended pregnancies in the United States each year.