The average person's skin weighs twice as much as their brain.
131
The aorta, the largest artery in the body, is almost the diameter of a garden hose.
37
There are more bacteria in your mouth than there are people in the world.
60
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
93
Your heart rate can rise as much as 30% during a yawn.
69
A person can live without food for about a month, but only about a week without water.
156
Your thumb is about the same size as your nose.
124