The world's shortest man measures only 21.5 inches.
73
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
One human hair can support 3 ounces.
191
Only humans shed emotional tears.
331
Human hair and fingernails continue to grow after death.
7
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197