Enamel is hardest substance in the human body.
61
A third of the human population sneezes when they look at the Sun. Light can signal the ocular nerve near the sinuses and triggers a sneeze.
18
You can't tickle yourself.
29
All 13 minerals necessary for human life can be found in alcohol beverages.
282
By weight, Bone is five times stronger than steel.
417
Your fingernails grow faster in summer.
744
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
93
