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Did you know?
There are more bacteria in your mouth than there are people in the world.
Did you know?
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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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.
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There are approximately 3 million unintended pregnancies in the United States each year.
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About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.