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Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.
Did you know?
There are more bacteria in your mouth than there are people in the world.
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Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.
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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
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Vaccines prevent between 2.5 and 4 million deaths every year.