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The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
There are more bacteria in your mouth than there are people in the world.
Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.
Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
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