Enamel is hardest substance in the human body.
61
Poor eyesight (myopia) is associated with higher IQ.
232
Every human spent about half an hour as a single cell.
144
Gorillas can catch human colds and other illnesses.
205
The world's shortest man measures only 21.5 inches.
73
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161
Your heart will pump about 212 million liters in its lifetime.
26
The average person's skin weighs twice as much as their brain.
131