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Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.
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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
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Vaccines prevent between 2.5 and 4 million deaths every year.
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Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.
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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.