A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
Your thumb is about the same size as your nose.
124
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
29
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
By weight, Bone is five times stronger than steel.
417
On average, there's 100 billion neurons in the human brain.
83
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198