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There are more bacteria in your mouth than there are people in the world.
Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.
The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
On average, the stomach produces 2 L of hydrochloric acid per day.
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