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Did you know?

There are 60,000 miles of blood vessels in every adult human.

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About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

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Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

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There are more bacteria in your mouth than there are people in the world.

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Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

Female (doe) Female (doe)
CD23 dependent epitope spreading CD23 dependent epitope spreading
Infants and Children Prenatal Through Middle Childhood — 7e Infants and Children Prenatal Through Middle Childhood — 7e
Comparison of Female and Male Pelves Comparison of Female and Male Pelves
The traditional human karyotypes derived from a normal female and a normal male The traditional human karyotypes derived from a normal female and a normal male
Newborns, infants, and children have a high percentage of body weight composed of water... Newborns, infants, and children have a high percentage of body weight composed of water...
Video: Leukemia

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