On average a woman has 4 sexual partners in her lifetime.
-143
Every human spent about half an hour as a single cell.
144
Early American humans hunted car-size armadillos and used their shells for houses.
12
A human brain produces as many as 12,000 to 50,000 thoughts per day, depending on how deep a thinker a person is.
23
Enamel is hardest substance in the human body.
61
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
93
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346
By weight, Bone is five times stronger than steel.
417