The brain itself cannot feel pain.
Your body contains the same amount of iron as an iron nail.
Humans are the only animals to produce emotional tears...
We are about 1cm taller in the morning than in the evening.
People generally read 25% slower from a computer screen compared to a paper..
Your thumb is approximately the same size as your nose...
Similar to fingerprints, everyone has a unique tongue print too....
It is not possible to tickle yourself.