Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
Your heart will pump about 212 million liters in its lifetime.
26
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
17
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
Your body is creating and killing about 2.4 million red blood cells per second.
17
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
One human hair can support 3 ounces.
191