Your body is creating and killing about 2.4 million red blood cells per second.
17
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
199
The levels of two stress hormones, cortisol and epinephrine which suppress the body's immune system, will actually drop after a dose of laughter.
112
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
17
If your DNA was stretched out it would reach to the moon 6,000 times.
256
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
12
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
One human hair can support 3 ounces.
191