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Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
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?
Blood is approximately twice as thick as water because of the cells and other components found in it.
Did you know?
Cyanide works by making the human body unable to use oxygen.
Did you know?
In 1844, Charles Goodyear obtained the first patent for a rubber condom.