Your body is creating and killing about 2.4 million red blood cells per second.
17
A person can live without food for about a month, but only about a week without water.
156
People who sleep late have more mental stamina and can outperform early risers.
33
There are about 1,400 different species of bacteria in your belly button.
10
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
We are born with 350 bones, and die with 206.
135