There are about 1,400 different species of bacteria in your belly button.
10
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
93
When you take a step, you are using up to 200 muscles.
886
When your face blushes, the lining of your stomach turns red, too.
154
The human brain doesn't stop developing until about 25 years old.
102
If you unfolded your brain, it would cover an ironing board.
42
Your skeleton keeps growing until you are about 35, then you start to shrink.
74