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Did you know?
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.
Did you know?
Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
Did you know?
There are 60,000 miles of blood vessels in every adult human.
Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.