There are about 1,400 different species of bacteria in your belly button.
10
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198
When you get goosebumps and your hair stands, the hair helps to trap air, making you feel warmer by keeping in your body heat.
46
There's 100 trillion good bacteria living in your body.
17
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
It is possible for you to survive even after the removal of the spleen, the stomach, one kidney, one lung, 75% of the liver, 80% of the intestines, and almost every organ from the pelvic and groin area.
218
The average sperm cell swims at 8 inches per hour.
76
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266