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Did you know?
If all the neurons in the human body were lined up, they would stretch more than 600 miles.
Did you know?
There are more bacteria in your mouth than there are people in the world.
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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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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.