On average, there's 100 billion neurons in the human brain.
83
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
Early American humans hunted car-size armadillos and used their shells for houses.
12
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
Your heart will pump about 212 million liters in its lifetime.
26
Enamel is hardest substance in the human body.
61