When your face blushes, the lining of your stomach turns red, too.
It takes about 20 seconds for a red blood cell to circle the whole body.
Your ribs move about 5 million times a year, every time you breathe!
Your heart rate can rise as much as 30% during a yawn.
Your hair grows faster in the morning than at any other time of day.
You inhale about 700,000 of your own skin flakes each day.
Unlike dogs, pigs, and some other mammals, humans cannot taste water. They taste only the chemicals and impurities in the water.
There are more bacteria in your mouth than there are people in the world.
The most pushups ever performed in one day was 46,001.
The human heart creates enough pressure to squirt blood 30 ft.
The average person has over 1,460 dreams a year!
The aorta, the largest artery in the body, is almost the diameter of a garden hose.