In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198
It takes approximately 12 hours for food to entirely digest.
93
You can't tickle yourself.
29
The human brain doesn't stop developing until about 25 years old.
102
Our Right Lungs takes more air than our left lung.
194
Your thumb is about the same size as your nose.
124
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
Only humans shed emotional tears.
331