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Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
Approximately 500,000 babies are born each year in the United States to teenage mothers.
Did you know?
In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
Did you know?
Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
Did you know?
More than 4.4billion prescriptions were dispensed within the United States in 2016.