When your face blushes, the lining of your stomach turns red, too.
154
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
The smallest human penis ever recorded was just 5/8 of an inch long!
77
Your heart pumps about 2,000 gallons of blood each day!
53
The average person's skin weighs twice as much as their brain.
131
There are more bacteria in your mouth than there are people in the world.
60
Chewing gum boosts your brain power.
285
Brain freeze is caused by the brain sensing the drop of temperature on your palate and increasing blood pressure in an attempt to save you from freezing.
14