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Did you know?
The human body produces and destroys 15 million blood cells every second.
Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.
Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.
Did you know?
The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.
Did you know?
Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.